CN111139690A - Core layer slurry for packaging paperboard and packaging paperboard - Google Patents
Core layer slurry for packaging paperboard and packaging paperboard Download PDFInfo
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- CN111139690A CN111139690A CN201911402818.5A CN201911402818A CN111139690A CN 111139690 A CN111139690 A CN 111139690A CN 201911402818 A CN201911402818 A CN 201911402818A CN 111139690 A CN111139690 A CN 111139690A
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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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
- D21H11/04—Kraft or sulfate pulp
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/14—Secondary fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch cationic
-
- 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
- D21H21/18—Reinforcing agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D2565/38—Packaging materials of special type or form
- B65D2565/381—Details of packaging materials of special type or form
- B65D2565/384—Details of packaging materials of special type or form made of recycled material
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The application discloses sandwich layer pulp for packaging paperboard, the sandwich layer pulp includes bleaching chemical thermomechanical pulp, bleaching chemical thermomechanical pulp includes needle blade mechanical pulp, the needle blade mechanical pulp accounts for the percentage of bleaching chemical thermomechanical pulp absolute dry mass is 25% -30%. According to the method, the needle mechanical pulp is added into the core layer pulp, the fiber length of the needle mechanical pulp is long, and the tensile strength is good, so that the needle mechanical pulp is characterized by high bulk and high stiffness, 25% -30% of the bleached chemithermomechanical pulp is added, the bleached chemithermomechanical pulp has high bulk and high strength, the core layer pulp containing the bleached chemithermomechanical pulp improves the interweaving capacity of core layer fibers, the Z-direction (thickness direction) strength of a core layer is improved, the prepared paperboard has the characteristics of high bulk, high strength and stiffness, and therefore the core layer pulp can be used for manufacturing the core layers of packaging paperboards such as white cardboard and food cardboard, and is particularly suitable for the field of medium-high grade food packaging paperboards.
Description
Technical Field
The application belongs to the technical field of papermaking, concretely relates to sandwich layer thick liquids and packing cardboard for packing cardboard.
Background
A large amount of bleached chemithermomechanical pulp (BCTMP) is applied to the existing packaging paper boards such as common white cardboard, food card base paper and the like in the production process so as to ensure the high bulk and the high stiffness of the paper. The BCTMP pulp is selected from BCTMP pulp with different bulk and tensile strength as raw materials according to the characteristics of different paperboard products, but the higher the bulk of the BCTMP pulp is, the poorer the strength is, so that the application of the BCTMP in the paperboard with unlimited high proportion is limited. Therefore, how to develop high-strength and high-bulk paper pulp is a revolutionary technical innovation on the advantages of cost and quality for producing packing paper such as common white cardboard, food card base paper, high-grade paper cup base paper and the like.
Disclosure of Invention
The application provides a core layer pulp for a packaging paperboard and a packaging paperboard, so as to develop high-strength and high-bulk pulp and paperboard.
In order to solve the technical problem, the application adopts a technical scheme that: the core layer pulp for the packaging paperboard comprises bleached chemical thermomechanical pulp, wherein the bleached chemical thermomechanical pulp comprises needle-blade mechanical pulp, and the needle-blade mechanical pulp accounts for 25% -30% of the absolute dry mass of the bleached chemical thermomechanical pulp.
According to an embodiment of the present application, the bleached chemithermomechanical pulp accounts for 50% -70% of the oven dry mass of the core layer pulp.
According to one embodiment of the present application, the coniferous mechanical pulp has a bulk of 2.7-3cm3/g。
According to one embodiment of the present application, the tensile strength of the softwood mechanical pulp is between 24 and 28 Nm/g.
According to an embodiment of the present application, the whiteness of the softwood mechanical pulp is above 74%.
According to an embodiment of the present application, the freeness of the needle mechanical pulp is 300-.
According to an embodiment of the present application, the core layer slurry further comprises positive starch and a dry strength agent, wherein the amount of the positive starch is 0.6-1% of the oven dry mass percentage of the bleached chemithermomechanical pulp; the amount of the dry strength agent is 2.1-3.1% of the oven dry mass percentage of the bleached chemithermomechanical pulp.
According to an embodiment of the present application, the core layer slurry further comprises: the waste paper deinking paper pulp accounts for 5 to 15 percent of the oven-dry mass of the core layer pulp; bleached sulfate hardwood pulp accounts for 5-15% of the oven-dry mass of the core layer pulp; and the broke accounts for 5-25% of the oven-dried mass of the core layer pulp.
In order to solve the technical problem, the application adopts a technical scheme that: the packaging paperboard comprises a bottom layer, a core layer and a surface layer, wherein the core layer is prepared from any one of the above core layer slurry.
According to an embodiment of the present application, the core layer slurry is prepared without refining.
The beneficial effect of this application is: different from the prior art, the needle mechanical pulp is added into the core layer pulp, the fiber length of the needle mechanical pulp is longer, the tensile strength is good, and therefore the needle mechanical pulp is characterized by higher bulk and higher stiffness, the bleached chemithermomechanical pulp added with 25% -30% of the needle mechanical pulp has higher bulk and strength, the core layer pulp containing the bleached chemithermomechanical pulp improves the interweaving capability of core layer fibers and improves the Z-direction (thickness direction) strength of a core layer, and the prepared paperboard has the characteristics of high bulk, high strength and stiffness, so that the core layer pulp can be used for manufacturing core layers of packaging paperboards such as white paperboard and food paperboard, and is particularly suitable for the field of middle-grade and high-grade food packaging paperboards.
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, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic flow diagram of an embodiment of a method for manufacturing a packaging board according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
An embodiment of the application provides a core layer pulp for a packaging paperboard, wherein the core layer pulp comprises bleached chemithermomechanical pulp (BCTMP), the bleached chemithermomechanical pulp comprises softwood pulp, and the softwood pulp accounts for 25% -30% of the oven dry mass of the bleached chemithermomechanical pulp.
According to the method, the needle mechanical pulp is added into the core layer pulp, the fiber length of the needle mechanical pulp is long, and the tensile strength is good, so that the needle mechanical pulp is characterized by high bulk and high stiffness, 25% -30% of the bleached chemithermomechanical pulp is added, the bleached chemithermomechanical pulp has high bulk and high strength, the core layer pulp containing the bleached chemithermomechanical pulp improves the interweaving capacity of core layer fibers, the Z-direction (thickness direction) strength of a core layer is improved, the prepared paperboard has the characteristics of high bulk, high strength and stiffness, and therefore the core layer pulp can be used for manufacturing the core layers of packaging paperboards such as white cardboard and food cardboard, and is particularly suitable for the field of medium-high grade food packaging paperboards. In one embodiment, the softwood mechanical pulp may comprise 25% to 30% of the oven dry weight of the bleached chemithermomechanical pulp, e.g., 25%, 26%, 27%, 28%, 29%, or 30%, etc., without limitation.
In one embodiment, the coniferous mechanical pulp has a bulk of 2.7-3cm3In g, e.g. 2.7cm3/g、2.8cm3/g、2.9cm3G or 3cm3And/g, etc. The tensile strength is 24 to 28 N.m/g, for example, 24 N.m/g, 25 N.m/g, 26 N.m/g, 27 N.m/g or 28 N.m/g. The main raw materials of the bleached chemithermomechanical pulp are eucalyptus and poplar, and the thickness of the eucalyptus is generally 3.0-3.5cm3The tensile strength is 9-14 N.m/g, and the bulk of poplar is 2.5-2.8cm3(ii) a tensile strength of 11 to 14 N.m/g. The corresponding needle blade mechanical pulp can be selected according to the characteristics of other mechanical pulp in the bleached chemical thermomechanical pulp to finely adjust the bleached chemical thermomechanical pulp to obtain the optimized fiber proportioning structure, so that the obtained core layer pulp can be used for preparing the paperboard with high bulk, high stiffness and good tensile strength according to the requirement.
In one embodiment, the whiteness of the needle blade mechanical pulp is over 74%, when the core layer pulp is used for preparing the white cardboard, the color requirement is high, the whiteness of the needle blade mechanical pulp is over 74%, the whiteness of the prepared core layer is high, and the use requirement of the white cardboard is met.
In one embodiment, the freeness of the needle mechanical pulp is 300-410ml, and the Canadian Standard Freeness (CSF) is one of the methods for measuring the drainage performance of the pulp, and generally speaking, the higher the freeness of the pulp, the faster the drainage speed. The freeness of the mechanical pulp of the needle blade is controlled between 300ml and 410ml, such as 300ml, 320ml, 350ml, 380ml, 400ml, 410ml and the like, and the degree of fibre fibrillation is reflected. If the freeness is too low, fibrillation will be better, air permeability will be worse, and fiber will be cut more, so to maintain fiber length, it is preferable to select softwood mechanical pulp having a freeness in the range of 300ml to 410 ml.
In one embodiment, the core layer slurry further comprises a positive starch and a dry strength agent, wherein the amount of the positive starch is 0.6-1%, such as 0.6%, 0.7%, 0.8%, 0.9%, or 1% of the oven dry mass percentage of the bleached chemithermomechanical pulp, and the like, and is not limited herein; the amount of the dry strength agent is 2.1-3.1% of the oven dry mass percentage of the bleached chemithermomechanical pulp, such as 2.1%, 2.5% or 3.1%, etc., and is not limited herein. The positive starch comprises starch formed by introducing tertiary ammonium groups, quaternary ammonium groups, primary amine groups or quaternary amine groups on starch macromolecules. The interlayer binding force of the prepared core layer is further improved by adjusting the proportion of the positive starch. The positive starch has high retention rate, is added into the pulp of the core layer and is adsorbed by fibers in the pulp in a large amount, and in the process of manufacturing the base paper, the positive starch enables anionic fibers to be flocculated together and the retention rate of fine fibers to be increased, so that the combination of the fibers and the fibers is facilitated to be formed, and the interlayer binding force of the manufactured base paper can be improved. Dry strength agents are used to compensate for the decrease in board strength caused by the addition of fillers or low grade fibers (e.g., recycled fibers). The strength of the core layer slurry can be finely adjusted by adjusting the use amount of the positive starch and the dry strength agent. Compared with the prior art, the positive starch and the dry strength agent are reduced, the improvement of the flexibility of the paperboard is facilitated, and the excessive positive starch and the excessive dry strength agent enable the paper to be crisp and have poor folding resistance.
In an embodiment, the bleached chemithermomechanical pulp is 50% to 70%, such as 50%, 60%, or 70%, etc., of the oven dry mass of the core layer pulp. The core layer pulp also comprises waste paper deinking pulp (DIP), bleached sulfate hardwood pulp (LBKP) and broke, wherein the percentage of the waste paper deinking pulp in the oven-dried mass of the core layer pulp is 5-15%, such as 5%, 8%, 12% or 15% and the like; the bleached sulfate hardwood pulp accounts for 5-15% of the oven-dry mass of the core layer pulp; the broke may represent 5-25% of the oven dry mass of the core layer pulp, e.g. 5%, 10%, 15%, 20% or 25%, etc.
In another embodiment of the present application, a packaging paperboard is provided, which includes a bottom layer, a core layer and a surface layer, wherein the core layer is prepared by using the core layer slurry in any one of the above embodiments. The packaging paperboard has the characteristics of high bulk, high strength and stiffness, can be used for white paperboard, food paperboard and the like, and is particularly suitable for the field of medium-high grade food packaging paperboards.
Further, the core layer pulp is prepared into the core layer in-process without pulping, and a large number of experiments show that the loss of the bulk of the prepared paperboard is large after the pulp of the core layer pulp is grinded, but the strength is not obviously improved, so that the pulp of the core layer is prepared into the core layer in-process without pulping, and the finally obtained paperboard has the characteristics of high bulk, high strength and stiffness.
The following is described in connection with a specific example:
table 1: core layer slurry proportioning for comparative and example 1
Table 2: pulp data for eucalyptus and softwood mechanical pulps used in table 1:
table 3: comparative and example core sheet quality comparison:
table 4: comparative and example comparison of the paper quality of packaging board:
referring to tables 1-4, table 1 shows the core layer slurry ratios of the comparative example and example 1, wherein the ratio unit of each component is percentage, which means the percentage of each component in the absolutely dry mass of the core layer slurry; table 2 is the pulp data for eucalyptus and softwood mechanical pulps used in table 1; table 3 is a comparison of core sheet quality for comparative examples and examples; table 4 shows the comparative example and example for a comparison of the paper quality of the packaging board. As can be seen from tables 1 and 2, the proportions and data of the components are in the aforementioned ranges, and as can be seen from tables 3 and 4, the packaging paperboard prepared from the core layer slurry has the characteristics of high bulk, high strength and stiffness, so that the core layer slurry can be used for manufacturing the core layer of packaging paperboards such as white cardboard and food cardboard, and is particularly suitable for the field of medium-high grade food packaging paperboards.
Referring to fig. 1, fig. 1 is a schematic flow chart of an embodiment of a method for manufacturing a packaging paperboard of the present application.
Another embodiment of the present application provides a method for manufacturing a packaging paperboard, which specifically includes:
s101: preparing a bottom layer slurry, the core layer slurry and the surface layer slurry described in any one of the above embodiments.
The bottom layer pulp comprises bleached broadleaf sulfate pulp and bleached softwood sulfate pulp, wherein the percentage of the bleached broadleaf sulfate pulp in the oven dry mass of the bottom layer pulp is 60% -80%, such as 60%, 70%, 80% and the like, and the percentage of the bleached softwood sulfate pulp in the oven dry mass of the bottom layer pulp is 20% -40%, such as 20%, 30%, 40% and the like.
The core layer slurry used was the core layer slurry described in any of the above examples.
The top stock includes bleached broadleaf sulfate pulp and bleached softwood sulfate pulp, wherein the bleached broadleaf sulfate pulp accounts for 60% -80%, such as 60%, 70%, 80%, etc., of the oven dry mass of the top stock, and the bleached softwood sulfate pulp accounts for 20% -40%, such as 20%, 30%, 40%, etc., of the oven dry mass of the top stock.
S102: and respectively preparing the bottom layer, the core layer and the surface layer of the base paper by using the bottom layer sizing agent, the core layer sizing agent and the surface layer sizing agent.
Wherein, the core layer pulp is not ground into pulp in the process of preparing the core layer.
S103: and sequentially laminating the bottom layer, the core layer and the surface layer together, and performing post-treatment to form the base paper.
In particular, the post-treatment may include the steps of pressing, drying, sizing, drying, calendering, and reeling.
The packaging paperboard manufactured by the preparation method of the embodiment has the characteristics of high bulk, high strength and stiffness.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.
Claims (10)
1. The core layer pulp for the packaging paperboard is characterized by comprising bleached chemithermomechanical pulp, wherein the bleached chemithermomechanical pulp comprises softwood pulp, and the softwood pulp accounts for 25-30% of the oven-dry mass of the bleached chemithermomechanical pulp.
2. Core layer pulp according to claim 1, characterized in that the percentage of bleached chemithermomechanical pulp in oven dried mass of the core layer pulp is 50-70%.
3. Core layer slurry according to claim 1, characterized in that the coniferous mechanical pulp has a bulk of 2.7-3cm3/g。
4. Core layer slurry according to claim 1, characterized in that the tensile strength of the pin machine pulp is 24-28N-m/g.
5. Core layer slurry according to claim 1, characterized in that the whiteness of the pin-blade mechanical pulp is above 74%.
6. The core layer slurry according to claim 1, wherein the freeness of the pin-leaf mechanical slurry is 300-410 ml.
7. The core layer slurry of claim 1, further comprising a positive starch and a dry strength agent, wherein the positive starch is present in an amount of 0.6-1% by mass of the bleached chemithermomechanical pulp; the amount of the dry strength agent is 2.1-3.1% of the oven dry mass percentage of the bleached chemithermomechanical pulp.
8. The core layer slurry of claim 7, further comprising:
the waste paper deinking paper pulp accounts for 5 to 15 percent of the oven-dry mass of the core layer pulp;
bleached sulfate hardwood pulp accounts for 5-15% of the oven-dry mass of the core layer pulp;
and the broke accounts for 5-25% of the oven-dried mass of the core layer pulp.
9. A packaging board comprising a base layer, a core layer and a top layer, the core layer being prepared from a core layer slurry according to any one of claims 1 to 8.
10. The packaging board of claim 9, wherein the core layer pulp is prepared as the core layer without refining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911402818.5A CN111139690A (en) | 2019-12-30 | 2019-12-30 | Core layer slurry for packaging paperboard and packaging paperboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911402818.5A CN111139690A (en) | 2019-12-30 | 2019-12-30 | Core layer slurry for packaging paperboard and packaging paperboard |
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| Publication Number | Publication Date |
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| CN111139690A true CN111139690A (en) | 2020-05-12 |
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| CN201911402818.5A Pending CN111139690A (en) | 2019-12-30 | 2019-12-30 | Core layer slurry for packaging paperboard and packaging paperboard |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235324A (en) * | 2021-04-23 | 2021-08-10 | 宁波亚洲浆纸业有限公司 | Paperboard, production method thereof and cigarette packet box |
| CN115976884A (en) * | 2023-01-05 | 2023-04-18 | 宁波亚洲浆纸业有限公司 | Paperboard and method for making paperboard |
| CN116607355A (en) * | 2023-06-19 | 2023-08-18 | 玖龙纸业（东莞）有限公司 | High bulk food card paper |
| WO2023186116A1 (en) * | 2022-04-01 | 2023-10-05 | 康美包服务股份公司 | Paper layer and packaging sheet, and manufacturing methods therefor, packaging sleeve and packaging container |
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| CN102758383A (en) * | 2012-07-18 | 2012-10-31 | 宁波中华纸业有限公司 | Production method for high-bulk packing board |
| CN103074822A (en) * | 2012-12-28 | 2013-05-01 | 珠海华丰纸业有限公司 | Special paper for external standard of cup bowl and manufacturing technology thereof |
| CN107268325A (en) * | 2016-04-08 | 2017-10-20 | 亚太森博（山东）浆纸有限公司 | A kind of packing board and preparation method thereof |
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| CN102518002A (en) * | 2011-12-30 | 2012-06-27 | 珠海华丰纸业有限公司 | High-bulk coating white cardboard and production process thereof |
| CN102758383A (en) * | 2012-07-18 | 2012-10-31 | 宁波中华纸业有限公司 | Production method for high-bulk packing board |
| CN103074822A (en) * | 2012-12-28 | 2013-05-01 | 珠海华丰纸业有限公司 | Special paper for external standard of cup bowl and manufacturing technology thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235324A (en) * | 2021-04-23 | 2021-08-10 | 宁波亚洲浆纸业有限公司 | Paperboard, production method thereof and cigarette packet box |
| WO2023186116A1 (en) * | 2022-04-01 | 2023-10-05 | 康美包服务股份公司 | Paper layer and packaging sheet, and manufacturing methods therefor, packaging sleeve and packaging container |
| CN115976884A (en) * | 2023-01-05 | 2023-04-18 | 宁波亚洲浆纸业有限公司 | Paperboard and method for making paperboard |
| CN115976884B (en) * | 2023-01-05 | 2023-11-24 | 宁波亚洲浆纸业有限公司 | Paperboard and method for producing paperboard |
| CN116607355A (en) * | 2023-06-19 | 2023-08-18 | 玖龙纸业（东莞）有限公司 | High bulk food card paper |
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Application publication date: 20200512 |
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