CN112064404A - Liquid packaging paper for high-speed two-dimensional code online jet printing and preparation method thereof - Google Patents
Liquid packaging paper for high-speed two-dimensional code online jet printing and preparation method thereof Download PDFInfo
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- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 30
- 238000007639 printing Methods 0.000 title abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000010410 layer Substances 0.000 claims abstract description 166
- 239000011248 coating agent Substances 0.000 claims abstract description 69
- 238000000576 coating method Methods 0.000 claims abstract description 69
- 239000011247 coating layer Substances 0.000 claims abstract description 46
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 32
- 238000001035 drying Methods 0.000 claims abstract description 29
- 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
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 16
- 239000004816 latex Substances 0.000 claims abstract description 15
- 229920000126 latex Polymers 0.000 claims abstract description 15
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims abstract description 15
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 11
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 41
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 39
- 239000011122 softwood Substances 0.000 claims description 34
- 239000003795 chemical substances by application Substances 0.000 claims description 28
- 238000003825 pressing Methods 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000004513 sizing Methods 0.000 claims description 22
- 229920002472 Starch Polymers 0.000 claims description 19
- 239000008107 starch Substances 0.000 claims description 19
- 235000019698 starch Nutrition 0.000 claims description 19
- 239000002270 dispersing agent Substances 0.000 claims description 15
- 239000000314 lubricant Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 239000005871 repellent Substances 0.000 claims description 15
- 230000002940 repellent Effects 0.000 claims description 15
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 14
- 230000000844 anti-bacterial effect Effects 0.000 claims description 14
- 239000002518 antifoaming agent Substances 0.000 claims description 14
- 239000003899 bactericide agent Substances 0.000 claims description 14
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 14
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 14
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 14
- 238000003490 calendering Methods 0.000 claims description 13
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 13
- 229920001131 Pulp (paper) Polymers 0.000 claims description 7
- 238000013329 compounding Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 7
- 239000011121 hardwood Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 10
- 239000002002 slurry Substances 0.000 description 27
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 20
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 20
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 20
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 20
- 238000004537 pulping Methods 0.000 description 10
- 238000012216 screening Methods 0.000 description 10
- 239000000654 additive Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 235000013305 food Nutrition 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- -1 precoating Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
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
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
-
- 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
- D21H17/02—Material of vegetable origin
-
- 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
- D21H17/66—Salts, e.g. alums
-
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
Abstract
The invention belongs to the technical field of papermaking, and discloses liquid packaging paper for high-speed two-dimensional code online jet printing and a preparation method thereof. The liquid wrapping paper comprises a raw paper layer, and a coating layer and a back coating layer which are respectively coated on the upper surface and the lower surface of the raw paper layer, wherein: the raw paper layer comprises a surface paper layer, a core paper layer and a bottom paper layer which are sequentially laminated from top to bottom; the coating layer comprises a top coating layer, a core coating layer and a precoating layer from top to bottom; the precoating layer and the core coating comprise the following components in parts by weight: 90-97 parts of calcium carbonate, 3-10 parts of calcined kaolin, 10-20 parts of styrene-acrylic latex and the like. The liquid wrapping paper has high ink absorption, high drying speed and high production efficiency, and can be suitable for high-speed two-dimensional code online jet printing, and the jet printing speed can reach 600 meters per minute. The liquid packaging paper has the advantages of high paper surface smoothness, high stiffness, high strength, excellent comprehensive performance and simple and easy preparation method.
Description
Technical Field
The invention belongs to the technical field of papermaking, and particularly relates to liquid packaging paper for high-speed two-dimensional code online jet printing and a preparation method thereof.
Background
In recent years, with the continuous improvement of the requirements of the packaging printing industry on sanitation and environmental protection, "low-carbon economy and green printing" has become the subject of the development of the printing industry at present. Particularly, toxic and harmful components are strictly forbidden to use in printing materials such as food and the like, so that the comprehensive popularization of the environment-friendly water-based ink in the printing industry becomes a necessary trend.
In addition, the newly revised food safety law in 2015 encourages enterprises to adopt an information technology to realize food safety traceability, an electronic food traceability system is formally trended, a spray-printed two-dimensional code becomes one of the most concerned application technologies of a global food supply chain by virtue of the advantages of low cost, simplicity in operation, large amount of stored information and the like, and at present, liquid packaging enterprises comprehensively adopt two-dimensional codes as traceability windows of products.
However, the requirement of the environment-friendly water-based ink jet printing two-dimensional code on paper jet printing is high, and therefore, a technical barrier exists in many applications. Liquid packing paper at home and abroad has various printing defects, so that the two-dimensional code jet printing process can not achieve ideal effects. Currently, it can only be generated in two ways: one is a static code directly printed on a paper coating layer, and the process has the defects that after the static code is generated, the content of the static code is fixed and can not be modified, and the content of the static code scanned from each packaging box is consistent and can not meet the requirement of product tracing; what is more critical is that the static two-dimensional code is blurred due to the dispersion or non-drying of the ink, so that the information scanning is invalid. And the other method is to add a code spraying procedure after the film is sprayed, namely spraying codes outside the machine. The process has the disadvantages of low code spraying speed, generally 50-80 m/min, low production efficiency; due to the fact that the two-dimensional code is printed on the face of the shower film in a spraying mode, the two-dimensional code is poor in definition, and the situation that the code cannot be read often occurs.
Therefore, it is highly desirable to provide a liquid wrapping paper with high ink absorption and quick drying, which can satisfy the requirement of the online jet printing of the water-based ink high-speed two-dimensional code.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art described above. Therefore, the liquid packaging paper for the high-speed two-dimensional code online jet printing has high ink absorption and quick drying performance, and can meet the requirement of the water-based ink high-speed two-dimensional code online jet printing.
The utility model provides a liquid wrapping paper, includes raw paper layer and coats in coating layer and the back coating of the upper surface of raw paper layer and lower surface respectively, wherein: the raw paper layer comprises a surface paper layer, a core paper layer and a bottom paper layer which are sequentially laminated from top to bottom; the coating layer comprises a top coating layer, a core coating layer and a precoating layer from top to bottom;
the precoating layer or the core coating respectively and independently comprises the following components in parts by weight: 90-97 parts of calcium carbonate, 3-10 parts of calcined kaolin, 10-20 parts of styrene-acrylic latex, 0.8-1.5 parts of carboxymethyl cellulose, 0.03-0.1 part of dispersant, 0.3-1.0 part of water repellent agent, 0.3-1.2 parts of lubricant and 0.03-0.08 part of defoaming agent.
Further preferably, the precoating layer or the core coating layer respectively and independently comprises the following components in parts by weight: 0.05-0.2 part of caustic soda and 0.05-0.3 part of bactericide.
Proper amount of calcined kaolin is added into the precoating layer and the core coating, and proper amount of calcium carbonate is added to improve the porosity of the coating and increase the ink absorption of the coating and the drying speed of the ink. High-speed online spray printing needs to balance ink absorption speed and drying speed, excessive calcined kaolin in a precoating layer and a core coating can cause too much ink absorption, drying is slow, ink diffusion is easy to occur, and definition is not enough; and if the calcined kaolin is too little, the ink absorption is not enough, and the color of the two-dimensional code after spray printing is light and unclear.
Preferably, the composition of the top coat comprises the following components in parts by weight: 50-80 parts of calcium carbonate, 20-50 parts of porcelain clay, 10-20 parts of styrene-acrylic latex, 0.1-0.5 part of carboxymethyl cellulose, 0.03-0.1 part of dispersant, 0.3-1.0 part of water repellent agent, 0.3-1.2 parts of lubricant, 0.03-0.08 part of defoaming agent, 0.05-0.2 part of caustic soda and 0.05-0.3 part of bactericide.
Preferably, the size of the surface paper layer comprises 30-70% of bleached sulfate softwood pulp and 30-70% of bleached sulfate hardwood pulp in percentage by weight; the pulp of the core paper layer comprises 30-70% of bleached thermomechanical pulp, 10-40% of bleached sulfate softwood pulp and 20-40% of unbleached sulfate softwood pulp; the pulp of the bottom paper layer comprises 80-100% of unbleached sulfate softwood pulp and 0-20% of bleached sulfate softwood pulp. The sizing agents of the surface paper layer, the core paper layer and the bottom paper layer are reasonably proportioned, so that the raw paper layer can achieve good stiffness and strength under the condition of only 3 layers, the interlayer bonding strength is high, the paper performance is excellent, and the raw materials and the processing procedures can be greatly saved.
Preferably, the amount is 230g/m2The quantitative of the surface paper layer is 52-60g/m by the liquid packaging paper meter2The basis weight of the core paper layer is 105-135g/m2The basis weight of the base paper layer is 35-39g/m2。
Preferably, a wet-end chemical additive is used in the slurry of the surface paper layer, the core paper layer and the bottom paper layer, wherein the wet-end chemical additive is rosin and aluminum sulfate, the addition amount of the rosin in the slurry of the surface paper layer is 20-40kg/t, the addition amount of the rosin in the slurry of the core paper layer is 20-40kg/t, and the addition amount of the rosin in the slurry of the bottom paper layer is 20-40 kg/t; the additive amount of the aluminum sulfate in the slurry of the surface paper layer is 4-20kg/t, the additive amount of the aluminum sulfate in the slurry of the core paper layer is 15-40kg/t, and the additive amount of the aluminum sulfate in the slurry of the bottom paper layer is 4-20 kg/t. The rosin and aluminum sulfate make the paper have high water resistance.
Preferably, the total coating weight of the coating layer is 25 to 30g/m2。
Preferably, the coating weight of the precoat layer is 10-12g/m2The coating weight of the core coating is 4-8g/m2The coating weight of the top coating is 12-15g/m2。
Preferably, the back coating consists of 2-7% of starch glue by mass concentration, and the coating weight is 1-3g/m2。
A preparation method of liquid packaging paper comprises the following steps:
preparing sizing agents of a surface paper layer, a core paper layer and a bottom paper layer, filtering, compounding, pressing, drying, performing surface sizing to obtain a raw paper layer, performing hard calendaring on the raw paper layer, sequentially coating a pre-coating layer, a core coating layer and a top coating layer on the surface paper layer of the raw paper layer, coating a back coating layer on the bottom coating layer of the raw paper layer, performing soft calendaring and drying to obtain the liquid packaging paper.
Preferably, the pressing comprises four pressing steps: the pressure of the first press is 60-80kN/m, the pressure of the second press is 75-95kN/m, the pressure of the third press is 500-800kN/m, and the pressure of the fourth press is 30-50 kN/m.
Preferably, a sizing agent is adopted in the surface sizing, the sizing agent is a starch solution with the mass concentration of 6-12%, and the dosage of the sizing agent is 2-3g/m2。
Preferably, the pressure of the hard calendering is 20-60kN/m and the temperature of the hard calendering is 150-180 ℃.
Preferably, the pressure of the soft calendering is 10-40 kN/m; the temperature of the soft calendering is 150-180 ℃.
According to the liquid packaging paper, the coating structure of the paper surface is changed in a breakthrough manner through reasonable proportion of the coating components, so that the liquid packaging paper has high ink absorption and high drying speed, and can be suitable for high-speed two-dimensional code online jet printing; the two-dimensional code is online to be spray-printed on the coating of paper, and the two-dimensional code is clear pleasing to the eye, and production efficiency is high, and the two-dimensional code can not be erased after the later stage process is drenched the membrane, can effectively prevent falsification, and through giving a uniquely identifiable two-dimensional code of commodity, it can be traceed back to realize a packet of a sign indicating number simultaneously. The user can trace back all supply chain information of raw materials, factory production, storage, dealer websites and the like of commodities by scanning the two-dimensional code, so that production and shopping are more transparent, safer and more confident.
Compared with the prior art, the invention has the following beneficial effects:
(1) the liquid packaging paper has high ink absorption and high drying speed, can be suitable for high-speed two-dimensional code online jet printing, has clear and attractive patterns after jet printing, has the jet printing speed of 600 m/min, and has high production efficiency.
(2) The liquid packaging paper has the advantages of high paper surface smoothness, high stiffness, high strength, excellent comprehensive performance and simple and easy preparation method.
Drawings
FIG. 1 is a schematic structural view of a liquid wrapping paper produced in example 1 of the present invention;
fig. 2 is a flow chart of a production process of the liquid wrapping paper according to example 1 of the present invention.
Detailed Description
In order to make the technical solutions of the present invention more apparent to those skilled in the art, the following examples are given for illustration. It should be noted that the following examples are not intended to limit the scope of the claimed invention.
The dispersant in the following examples is DS-FS142 available from Toyol New materials, Inc., Shanghai; the lubricant is PROX-AMINE AP purchased from chemical industry Co., Ltd; the water repellent agent is WK-3025N available from Huake New Material science and technology Co., Ltd, Guangzhou city; the defoaming agent is WB6055 purchased from Beijing Asceomo Chemicals Co., Ltd; the bactericide was BX9523 available from AMAZON PAPYRUS CHEMICALS LIMITED. The remaining materials, reagents or equipment may be conventionally commercially available or may be obtained by conventionally known methods, unless otherwise specified.
Example 1
A liquid packing paper, as shown in fig. 1, comprises a raw paper layer 100, and a coating layer 300 and a back coating layer 200 respectively applied to the upper surface and the lower surface of the raw paper layer, wherein: the raw paper layer comprises a surface paper layer 130, a core paper layer 120 and a bottom paper layer 110 which are sequentially stacked from top to bottom; the coating layers include top coat 330, core coat 320, and precoat 310 layers from top to bottom.
A preparation method of liquid wrapping paper comprises the following steps (the specific production process flow chart is shown in figure 2):
(1) pulping process
A surface paper layer: the pulp of the surface paper layer consists of 30 percent of bleached sulfate softwood pulp and 70 percent of bleached sulfate hardwood pulp, and the pulp is screened, pulped, prepared and finally manufactured by a paper feeder after being pulped by a hydrapulper according to a certain proportion.
Core paper layer: the pulp of the core paper layer comprises 30% of bleached thermomechanical pulp, 40% of bleached sulfate softwood pulp and 30% of unbleached sulfate softwood pulp, the pulp is pulped by a hydrapulper according to a certain proportion, then screening, pulping, pulp blending and paper making are carried out by a paper feeder.
A base paper layer: the pulp of the paper layer consists of 100 percent of unbleached sulfate softwood pulp, and the pulp is screened, pulped, prepared and finally manufactured by a paper machine after being pulped by a hydrapulper according to a certain proportion.
(2) Wet end chemistry
The addition amount of rosin in the sizing agent of the surface paper layer is 20kg/t, and the addition amount of aluminum sulfate is 4 kg/t;
the addition amount of rosin in the slurry of the core paper layer is 40kg/t, and the addition amount of aluminum sulfate is 40 kg/t;
the addition amount of rosin in the slurry of the base paper layer is 20 kg/t; the amount of aluminum sulfate added was 4 kg/t.
(3) Paper machine section
Screening, filtering water in the three layers of slurry respectively, and compounding the three layers of slurry;
pressing pressure: the pressure of the first press is 60kN/m, the pressure of the second press is 95kN/m, the pressure of the third press is 800kN/m, and the pressure of the fourth press is 30 kN/m.
And (3) drying: the first-stage steam pressure of the previous drying is 100kPa, the second-stage steam pressure is 200kPa, and the third-stage steam pressure is 80 kPa;
surface sizing: starch mass concentration is 6%, and application amount is 2g/m2；
Hard calendering: the pressure is 20KN/m and the temperature is 180 ℃;
coating: front three-layer coating, precoating, core coating and surface coating;
precoat, core coat: 90 parts of calcium carbonate, 10 parts of calcined kaolin, 20 parts of styrene-acrylic latex, 1.5 parts of carboxymethyl cellulose, 0.05 part of dispersing agent, 0.3 part of water repellent agent, 0.3 part of lubricating agent, 0.035 part of defoaming agent, 0.2 part of caustic soda and 0.3 part of bactericide;
and (3) surface coating: 80 parts of calcium carbonate, 20 parts of porcelain clay, 10 parts of styrene-acrylic latex, 0.5 part of carboxymethyl cellulose, 0.05 part of dispersant, 1.0 part of water repellent agent, 0.3 part of lubricant, 0.035 part of defoamer, 0.05 part of caustic soda and 0.05 part of bactericide;
back coating, starch glue starch 100%, concentration 7%, coating weight 3g/m2。
And finally, drying, coiling, rewinding, packaging and warehousing.
The measured paper quality index is shown in table 1.
TABLE 1
Example 2
The utility model provides a liquid wrapping paper, includes raw paper layer and coats in coating layer and the back coating of the upper surface of raw paper layer and lower surface respectively, wherein: the raw paper layer comprises a surface paper layer, a core paper layer and a bottom paper layer which are sequentially laminated from top to bottom; the coating layer comprises a top coating layer, a core coating layer and a precoating layer from top to bottom.
1. Pulping process
A surface paper layer: the pulp of the surface paper layer consists of 70 percent of bleached sulfate softwood pulp and 30 percent of bleached sulfate hardwood pulp, and the pulp is screened, pulped, prepared and finally manufactured by a paper feeder after being pulped by a hydrapulper according to a certain proportion.
Core paper layer: the pulp of the core paper layer comprises 70% of bleached thermomechanical pulp, 10% of bleached sulfate softwood pulp and 20% of unbleached sulfate softwood pulp, the pulp is pulped by a hydrapulper according to a certain proportion, then screening, pulping, pulp blending and paper making are carried out by a paper feeder.
A base paper layer: the pulp composition of the paper layer is 80% of unbleached sulfate softwood pulp and 20% of bleached sulfate softwood pulp. The pulp board is screened, pulped and prepared after being pulped by a hydrapulper according to a certain proportion, and finally a paper machine is used for papermaking.
(2) Wet end chemistry
The addition amount of rosin in the sizing agent of the surface paper layer is 40kg/t, and the addition amount of aluminum sulfate is 20 kg/t;
the addition amount of rosin in the slurry of the core paper layer is 20kg/t, and the addition amount of aluminum sulfate is 15 kg/t;
the addition amount of rosin in the slurry of the base paper layer is 40 kg/t; the addition amount of aluminum sulfate was 20 kg/t.
(3) Paper machine section
Screening, filtering water in the three layers of slurry respectively, and compounding the three layers of slurry;
pressing pressure: the pressure of the first pressing is 80kN/m, the pressure of the second pressing is 75kN/m, the pressure of the third pressing is 500kN/m, and the pressure of the fourth pressing is 50 kN/m;
and (3) drying: the first-stage steam pressure of the front drying is 350kPa, the second-stage steam pressure is 80kPa, and the third-stage steam pressure is 50 kPa;
surface sizing: starch concentration 12%, application amount 3g/m2；
Hard calendering: the pressure is 60KN/m and the temperature is 150 ℃;
coating: front three-layer coating, precoating, core coating and surface coating;
precoat, core coat: 97 parts of calcium carbonate, 3 parts of calcined kaolin, 10 parts of styrene-acrylic latex, 0.8 part of carboxymethyl cellulose, 0.05 part of dispersing agent, 1.0 part of water repellent agent, 1.2 parts of lubricating agent, 0.035 part of defoaming agent, 0.05 part of caustic soda and 0.05 part of bactericide;
and (3) surface coating: 50 parts of calcium carbonate, 50 parts of china clay, 20 parts of styrene-acrylic latex, 0.1 part of carboxymethyl cellulose, 0.05 part of dispersant, 0.3 part of water repellent agent, 1.2 parts of lubricant, 0.035 part of defoaming agent, 0.2 part of caustic soda and 0.3 part of bactericide.
Back coating, starch glue starch 100%, concentration 2%, coating weight 1g/m2。
And finally, drying, coiling, rewinding, packaging and warehousing.
The measured paper quality index is shown in table 2.
TABLE 2
Example 3
The utility model provides a liquid wrapping paper, includes raw paper layer and coats in coating layer and the back coating of the upper surface of raw paper layer and lower surface respectively, wherein: the raw paper layer comprises a surface paper layer, a core paper layer and a bottom paper layer which are sequentially laminated from top to bottom; the coating layer comprises a top coating layer, a core coating layer and a precoating layer from top to bottom.
1. Pulping process
A surface paper layer: the pulp of the surface paper layer consists of 40% bleached sulfate softwood pulp and 60% bleached sulfate hardwood pulp, and the pulp is pulped in a hydrapulper according to a certain proportion, screened, pulped, prepared and finally manufactured by a paper feeder.
Core paper layer: the pulp of the core paper layer comprises 40% of bleached thermomechanical pulp, 25% of bleached sulfate softwood pulp and 35% of unbleached sulfate softwood pulp, the pulp is pulped by a hydrapulper according to a certain proportion, then screening, pulping, pulp blending and paper making are carried out by a paper feeder.
A base paper layer: the pulp composition of the paper layer is 90% of unbleached sulfate softwood pulp and 10% of bleached sulfate softwood pulp. The pulp board is screened, pulped and prepared after being pulped by a hydrapulper according to a certain proportion, and finally a paper machine is used for papermaking.
(2) Wet end chemistry
The addition amount of rosin in the sizing agent of the surface paper layer is 35kg/t, and the addition amount of aluminum sulfate is 15 kg/t;
the addition amount of rosin in the slurry of the core paper layer is 35kg/t, and the addition amount of aluminum sulfate is 35 kg/t;
the addition amount of rosin in the slurry of the base paper layer is 35 kg/t; the amount of aluminum sulfate added was 15 kg/t.
(3) Paper machine section
Screening, filtering water in the three layers of slurry respectively, and compounding the three layers of slurry;
pressing pressure: the pressure of the first pressing is 70kN/m, the pressure of the second pressing is 85kN/m, the pressure of the third pressing is 700kN/m, and the pressure of the fourth pressing is 40 kN/m;
and (3) drying: the first-stage steam pressure of the previous drying is 200kPa, the second-stage steam pressure is 150kPa, and the third-stage steam pressure is 100 kPa;
surface sizing: starch concentration 10%, application amount 2.8g/m2；
Hard calendering: the pressure is 30KN/m and the temperature is 160 ℃;
coating: front three-layer coating, precoating, core coating and surface coating;
precoat, core coat: 95 parts of calcium carbonate, 5 parts of calcined kaolin, 15 parts of styrene-acrylic latex, 1.2 parts of carboxymethyl cellulose, 0.05 part of dispersing agent, 0.5 part of water repellent agent, 0.8 part of lubricating agent, 0.035 part of defoaming agent, 0.1 part of caustic soda and 0.1 part of bactericide;
and (3) surface coating: 60 parts of calcium carbonate, 40 parts of china clay, 15 parts of styrene-acrylic latex, 0.3 part of carboxymethyl cellulose, 0.05 part of dispersing agent, 0.6 part of water repellent agent, 0.8 part of lubricating agent, 0.035 part of defoaming agent, 0.1 part of caustic soda and 0.1 part of bactericide.
Back coating, starch glue starch 100%, concentration 5%, coating weight 1.5g/m2。
And finally, drying, coiling, rewinding, packaging and warehousing.
The measured paper quality index is shown in table 3.
TABLE 3
Example 4
The utility model provides a liquid wrapping paper, includes raw paper layer and coats in coating layer and the back coating of the upper surface of raw paper layer and lower surface respectively, wherein: the raw paper layer comprises a surface paper layer, a core paper layer and a bottom paper layer which are sequentially laminated from top to bottom; the coating layer comprises a top coating layer, a core coating layer and a precoating layer from top to bottom.
1. Pulping process
A surface paper layer: the pulp of the surface paper layer consists of 45 percent of bleached sulfate softwood pulp and 55 percent of bleached sulfate hardwood pulp, and the pulp is screened, pulped and prepared after being pulped by a hydrapulper according to a certain proportion, and finally the pulp is manufactured by a paper feeder.
Core paper layer: the pulp of the core paper layer comprises 40% of bleached thermomechanical pulp, 30% of bleached sulfate softwood pulp and 30% of unbleached sulfate softwood pulp, the pulp is pulped by a hydrapulper according to a certain proportion, then screening, pulping, pulp blending and paper making are carried out by a paper feeder.
A base paper layer: the pulp composition of the paper layer is 90% of unbleached sulfate softwood pulp and 10% of bleached sulfate softwood pulp. The pulp board is screened, pulped and prepared after being pulped by a hydrapulper according to a certain proportion, and finally a paper machine is used for papermaking.
(2) Wet end chemistry
The addition amount of rosin in the sizing agent of the surface paper layer is 35kg/t, and the addition amount of aluminum sulfate is 15 kg/t;
the addition amount of rosin in the slurry of the core paper layer is 35kg/t, and the addition amount of aluminum sulfate is 35 kg/t;
the addition amount of rosin in the slurry of the base paper layer is 35 kg/t; the amount of aluminum sulfate added was 15 kg/t.
(3) Paper machine section
Screening, filtering water in the three layers of slurry respectively, and compounding the three layers of slurry;
pressing pressure: the pressure of the first pressing is 70kN/m, the pressure of the second pressing is 85kN/m, the pressure of the third pressing is 700kN/m, and the pressure of the fourth pressing is 40 kN/m;
and (3) drying: the first-stage steam pressure of the previous drying is 200kPa, the second-stage steam pressure is 150kPa, and the third-stage steam pressure is 100 kPa;
surface sizing: starch concentration 10%, application amount 2.8g/m2；
Hard calendering: the pressure is 30KN/m and the temperature is 160 ℃;
coating: front three-layer coating, precoating, core coating and surface coating;
precoat, core coat: 95 parts of calcium carbonate, 5 parts of calcined kaolin, 15 parts of styrene-acrylic latex, 1.2 parts of carboxymethyl cellulose, 0.05 part of dispersing agent, 0.5 part of water repellent agent, 0.8 part of lubricating agent, 0.035 part of defoaming agent, 0.1 part of caustic soda and 0.1 part of bactericide;
and (3) surface coating: 60 parts of calcium carbonate, 40 parts of china clay, 15 parts of styrene-acrylic latex, 0.3 part of carboxymethyl cellulose, 0.05 part of dispersing agent, 0.6 part of water repellent agent, 0.8 part of lubricating agent, 0.035 part of defoaming agent, 0.1 part of caustic soda and 0.1 part of bactericide.
Back coating, starch glue starch 100%, concentration 5%, coating weight 1.5g/m2。
And finally, drying, coiling, rewinding, packaging and warehousing.
The measured paper quality index is shown in Table 4.
TABLE 4
Comparative example 1
The utility model provides a liquid wrapping paper, includes raw paper layer and coats in coating layer and the back coating of the upper surface of raw paper layer and lower surface respectively, wherein: the raw paper layer comprises a surface paper layer, a core paper layer and a bottom paper layer which are sequentially laminated from top to bottom; the coating layer comprises a top coating layer, a core coating layer and a precoating layer from top to bottom.
1. Pulping process
A surface paper layer: the pulp of the surface paper layer consists of 45 percent of bleached sulfate softwood pulp and 55 percent of bleached sulfate hardwood pulp, and the pulp is screened, pulped and prepared after being pulped by a hydrapulper according to a certain proportion, and finally the pulp is manufactured by a paper feeder.
Core paper layer: the pulp of the core paper layer comprises 40% of bleached thermomechanical pulp, 30% of bleached sulfate softwood pulp and 30% of unbleached sulfate softwood pulp, the pulp is pulped by a hydrapulper according to a certain proportion, then screening, pulping, pulp blending and paper making are carried out by a paper feeder.
A base paper layer: the pulp composition of the paper layer is 90% of unbleached sulfate softwood pulp and 10% of bleached sulfate softwood pulp. The pulp board is screened, pulped and prepared after being pulped by a hydrapulper according to a certain proportion, and finally a paper machine is used for papermaking.
(2) Wet end chemistry
The addition amount of rosin in the sizing agent of the surface paper layer is 35kg/t, and the addition amount of aluminum sulfate is 15 kg/t;
the addition amount of rosin in the slurry of the core paper layer is 35kg/t, and the addition amount of aluminum sulfate is 35 kg/t;
the addition amount of rosin in the slurry of the base paper layer is 35 kg/t; the amount of aluminum sulfate added was 15 kg/t.
(3) Paper machine section
Screening, filtering water in the three layers of slurry respectively, and compounding the three layers of slurry;
pressing pressure: the pressure of the first pressing is 70kN/m, the pressure of the second pressing is 85kN/m, the pressure of the third pressing is 700kN/m, and the pressure of the fourth pressing is 40 kN/m;
and (3) drying: the first-stage steam pressure of the previous drying is 200kPa, the second-stage steam pressure is 150kPa, and the third-stage steam pressure is 100 kPa;
surface sizing: starch concentration 10%, application amount 2.8g/m2；
Hard calendering: the pressure is 30KN/m and the temperature is 160 ℃;
coating: front three-layer coating, precoating, core coating and surface coating;
precoat, core coat: 80 parts of calcium carbonate, 20 parts of calcined kaolin, 15 parts of styrene-acrylic latex, 1.2 parts of carboxymethyl cellulose, 0.05 part of dispersing agent, 0.5 part of water repellent agent, 0.8 part of lubricating agent, 0.035 part of defoaming agent, 0.1 part of caustic soda and 0.1 part of bactericide;
and (3) surface coating: 60 parts of calcium carbonate, 40 parts of china clay, 15 parts of styrene-acrylic latex, 0.3 part of carboxymethyl cellulose, 0.05 part of dispersing agent, 0.6 part of water repellent agent, 0.8 part of lubricating agent, 0.035 part of defoaming agent, 0.1 part of caustic soda and 0.1 part of bactericide.
Back coating, starch glue starch 100%, concentration 5%, coating weight 1.5g/m2。
And finally, drying, coiling, rewinding, packaging and warehousing.
The measured paper quality index is shown in Table 5.
TABLE 5
The liquid packaging paper prepared by the embodiments 1-4 has excellent ink absorption performance and high drying speed, is suitable for spraying code at the speed of 500 plus 600 m/min, and can completely meet the requirement of high-speed two-dimensional code online spray printing; and the printing glossiness, the printing surface strength and the interlayer bonding strength are superior to those of the common liquid wrapping paper and the liquid wrapping paper prepared in the comparative example 1.
Claims (10)
1. The utility model provides a liquid wrapping paper, its characterized in that includes the raw paper layer and coats in respectively the coating layer and the back coating of the upper surface and the lower surface of raw paper layer, wherein: the raw paper layer comprises a surface paper layer, a core paper layer and a bottom paper layer which are sequentially laminated from top to bottom; the coating layer comprises a top coating layer, a core coating layer and a precoating layer from top to bottom;
the precoating layer or the core coating respectively and independently comprises the following components in parts by weight: 90-97 parts of calcium carbonate, 3-10 parts of calcined kaolin, 10-20 parts of styrene-acrylic latex, 0.8-1.5 parts of carboxymethyl cellulose, 0.03-0.1 part of dispersant, 0.3-1.0 part of water repellent agent, 0.3-1.2 parts of lubricant and 0.03-0.08 part of defoaming agent.
2. The liquid packaging paper of claim 1, wherein the topcoat comprises, in parts by weight: 50-80 parts of calcium carbonate, 20-50 parts of porcelain clay, 10-20 parts of styrene-acrylic latex, 0.1-0.5 part of carboxymethyl cellulose, 0.03-0.1 part of dispersant, 0.3-1.0 part of water repellent agent, 0.3-1.2 parts of lubricant, 0.03-0.08 part of defoaming agent, 0.05-0.2 part of caustic soda and 0.05-0.3 part of bactericide.
3. The liquid packaging paper of claim 1, wherein the size of the face paper layer consists of 30-70% bleached sulfate softwood pulp and 30-70% bleached sulfate hardwood pulp, in weight percent; the pulp of the core paper layer comprises 30-70% of bleached thermomechanical pulp, 10-40% of bleached sulfate softwood pulp and 20-40% of unbleached sulfate softwood pulp; the pulp of the bottom paper layer comprises 80-100% of unbleached sulfate softwood pulp and 0-20% of bleached sulfate softwood pulp.
4. Liquid packaging paper according to claim 1, characterized in that it has a basis weight of 230g/m2The quantitative of the surface paper layer is 52-60g/m by the liquid packaging paper meter2The basis weight of the core paper layer is 105-135g/m2The basis weight of the base paper layer is 35-39g/m2。
5. The liquid packaging paper according to claim 1, wherein the total coating amount of the coating layer is 25 to 30g/m2。
6. A liquid packaging paper according to claim 5, characterized in that the precoat layer is applied in an amount of 10-12g/m2The coating weight of the core coating is 4-8g/m2The coating weight of the top coating is 12-15g/m2。
7. A liquid packaging paper according to claim 1, wherein said set of back coatingsThe starch glue with the mass concentration of 2-7% is formed, and the coating weight is 1-3g/m2。
8. A method of making a liquid wrapping paper according to any one of claims 1 to 7, comprising the steps of:
preparing sizing agents of a surface paper layer, a core paper layer and a bottom paper layer, filtering, compounding, pressing, drying, performing surface sizing to obtain a raw paper layer, performing hard calendaring on the raw paper layer, sequentially coating a pre-coating layer, a core coating layer and a top coating layer on the surface paper layer of the raw paper layer, coating a back coating layer on the bottom coating layer of the raw paper layer, performing soft calendaring and drying to obtain the liquid packaging paper.
9. The method of claim 8, wherein the pressing comprises a total of four presses: the pressure of the first press is 60-80kN/m, the pressure of the second press is 75-95kN/m, the pressure of the third press is 500-800kN/m, and the pressure of the fourth press is 30-50 kN/m.
10. The method according to claim 8, wherein a sizing agent is used for the surface sizing, and the sizing agent is a starch solution with a mass concentration of 6-12%.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550168A (en) * | 2021-07-14 | 2021-10-26 | 珠海红塔仁恒包装股份有限公司 | Vaccine cold storage packaging paper and preparation method thereof |
| CN114457625A (en) * | 2022-01-29 | 2022-05-10 | 亚太森博（山东）浆纸有限公司 | Surface-coated roof-type packaging paper and production process thereof |
| CN116289329A (en) * | 2023-03-09 | 2023-06-23 | 宁波亚洲浆纸业有限公司 | Coated printing paper, method for producing the same and food container having printed pattern |
| CN117364543A (en) * | 2023-12-08 | 2024-01-09 | 山东博汇纸业股份有限公司 | High-whiteness and excellent-printing coated paper cup base paper and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1330182A (en) * | 1969-11-12 | 1973-09-12 | Cartiere Ambrogio Binda Spa | Printing matrieces |
| DE3472122D1 (en) * | 1983-11-29 | 1988-07-21 | Dow Chemical Co | Coatings and coated papers for gravure printing |
| CN102912690A (en) * | 2012-10-31 | 2013-02-06 | 珠海经济特区红塔仁恒纸业有限公司 | Liquid packing paper with high stiffness and production technology thereof |
| CN103382692A (en) * | 2013-06-27 | 2013-11-06 | 珠海经济特区红塔仁恒纸业有限公司 | White base cardboard capable of being directly vacuum aluminized and preparation method thereof |
| CN106245459A (en) * | 2016-09-05 | 2016-12-21 | 珠海红塔仁恒包装股份有限公司 | A kind of true qualities flexible package punch paper and production technology thereof |
| CN107142784A (en) * | 2017-05-22 | 2017-09-08 | 宁波亚洲浆纸业有限公司 | Coating for the coating of the aqueous coding of cardboard |
-
2020
- 2020-08-28 CN CN202010886577.2A patent/CN112064404A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1330182A (en) * | 1969-11-12 | 1973-09-12 | Cartiere Ambrogio Binda Spa | Printing matrieces |
| DE3472122D1 (en) * | 1983-11-29 | 1988-07-21 | Dow Chemical Co | Coatings and coated papers for gravure printing |
| CN102912690A (en) * | 2012-10-31 | 2013-02-06 | 珠海经济特区红塔仁恒纸业有限公司 | Liquid packing paper with high stiffness and production technology thereof |
| CN103382692A (en) * | 2013-06-27 | 2013-11-06 | 珠海经济特区红塔仁恒纸业有限公司 | White base cardboard capable of being directly vacuum aluminized and preparation method thereof |
| CN106245459A (en) * | 2016-09-05 | 2016-12-21 | 珠海红塔仁恒包装股份有限公司 | A kind of true qualities flexible package punch paper and production technology thereof |
| CN107142784A (en) * | 2017-05-22 | 2017-09-08 | 宁波亚洲浆纸业有限公司 | Coating for the coating of the aqueous coding of cardboard |
Non-Patent Citations (1)
| Title |
|---|
| 李策等: "《纸张生产实用技术》", 30 April 1999, 北京：中国轻工业出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550168A (en) * | 2021-07-14 | 2021-10-26 | 珠海红塔仁恒包装股份有限公司 | Vaccine cold storage packaging paper and preparation method thereof |
| CN113550168B (en) * | 2021-07-14 | 2022-11-22 | 珠海红塔仁恒包装股份有限公司 | Vaccine cold storage packaging paper and preparation method thereof |
| CN114457625A (en) * | 2022-01-29 | 2022-05-10 | 亚太森博（山东）浆纸有限公司 | Surface-coated roof-type packaging paper and production process thereof |
| CN116289329A (en) * | 2023-03-09 | 2023-06-23 | 宁波亚洲浆纸业有限公司 | Coated printing paper, method for producing the same and food container having printed pattern |
| CN117364543A (en) * | 2023-12-08 | 2024-01-09 | 山东博汇纸业股份有限公司 | High-whiteness and excellent-printing coated paper cup base paper and preparation method thereof |
| CN117364543B (en) * | 2023-12-08 | 2024-03-19 | 山东博汇纸业股份有限公司 | High-whiteness and excellent-printing coated paper cup base paper and preparation method thereof |
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