CN112575615A - Preparation method of low-basis-weight high-wet-strength fine dried noodle cardboard paper - Google Patents
Preparation method of low-basis-weight high-wet-strength fine dried noodle cardboard paper Download PDFInfo
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- CN112575615A CN112575615A CN202011306974.4A CN202011306974A CN112575615A CN 112575615 A CN112575615 A CN 112575615A CN 202011306974 A CN202011306974 A CN 202011306974A CN 112575615 A CN112575615 A CN 112575615A
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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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
-
- 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
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- 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
- D21H17/25—Cellulose
-
- 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
- D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
- D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
-
- 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
-
- 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
- D21H21/20—Wet strength agents
Abstract
The invention discloses a preparation method of low-basis weight high-wet-strength fine dried noodle cardboard paper, which comprises the following steps: pulping, papermaking and surface sizing. According to the invention, different types of nano-cellulose are added in the preparation process of the fine dried noodle cardboard paper, so that the formation of a net structure formed by crosslinking of a wet strength agent, surface sizing and fibers is enhanced, the wet strength of the fine dried noodle cardboard paper is further improved, less paper pulp is used under the same strength, and the prepared fine dried noodle cardboard paper has low quantification and thin thickness.
Description
Technical Field
The invention relates to the technical field of papermaking, in particular to a preparation method of low-basis-weight high-wet-strength fine dried noodle cardboard paper.
Background
The cardboard paper is an important packaging material in the packaging industry at home and abroad at present, and is manufactured by three kinds of pulp with different process properties, namely surface pulp, core pulp and bottom pulp in the production process. The forest resources in China are in short supply, and the paper making industry can only use a large amount of recycled fiber raw materials. The production of the cardboard paper is more similar, the fine dried pulp uses unbleached sulfate wood pulp, and the core pulp and the bottom pulp use recycled fiber pulp.
The fine dried noodle box board paper is used as the surface material of products such as corrugated boards, hard fiber boards and the like.
With the decrease of waste paper sources and the increase of waste paper prices, enterprises need to recombine waste paper proportions to guarantee raw material supply. Meanwhile, the market for linerboard paper tends to be low basis weight and high performance, pursuing low basis weight, high wet strength performance. The low quantification of paper can reduce raw materials and energy consumed by producing paper per unit area, and reduce pollution in the paper making process. However, there are many problems in the low basis weight of paper, and as the basis weight is reduced, the strength, opacity, stiffness and other properties of paper are reduced, which affects the quality of paper. Therefore, how to optimize the chemical formula of the fine dried noodle cardboard paper, reduce the paper ration and obtain better strength performance is a hot technical problem faced by enterprises in the current fine dried noodle cardboard paper industry.
Disclosure of Invention
The invention aims to provide a production method of low-quantitative high-wet-strength fine dried noodle cardboard paper. And the wet strength effect of the finished paper is obviously improved by combining the surface sizing technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a preparation method of low-basis weight high-wet-strength liner cardboard paper comprises the following steps:
pulping, wherein the surface pulp is prepared by mixing bleached natural-color bamboo pulp and OCC (organic cellulose) and pulping, micro-nano calcium carbonate, carboxymethyl cellulose, a wet strength agent PAE (polyamide acid) and nano cellulose are sequentially added into a pulp preparation pool, and the mixture is fully mixed for later use; the core pulp adopts OCC waste paper pulp and papermaking primary settling tank sludge; bottom pulp, namely 100 percent OCC pulp is adopted, the pulp is purified and ground into pulp, micro-nano calcium carbonate, carboxymethyl cellulose, wet strength agent PAE and nano cellulose are sequentially added into a pulp blending pool, and the mixture is fully mixed for later use;
step (2) papermaking, wherein the surface core bottom slurry is respectively made into paper in a three-fold net paper machine;
and (3) surface sizing, wherein the surface sizing adopts film transfer sizing, and the sizing agent comprises Arabic gum, polyvinyl alcohol, tapioca starch, carboxymethyl cellulose and nano cellulose.
Further, the surface pulp in the step (1) is prepared by mixing and grinding bleached natural color bamboo pulp and waste boxboard waste paper OCC in a ratio of 50:50-20:80 (absolute dry weight). Sequentially adding 5-10% of micro-nano calcium carbonate, 3-5% of carboxymethyl cellulose, 0.1-3% of wet strength agent PAE and 0.1-2% of nano cellulose into a pulp mixing tank, and fully mixing for later use.
Further, the core pulp in the step (1) adopts OCC waste paper pulp and papermaking primary settling tank sludge, and the adding proportion is 30:70-100: 0.
Further, in the bottom pulp in the step (1), 100% of OCC pulp is adopted, the pulp is purified and ground into pulp, 5-10% of micro-nano calcium carbonate, 3-5% of carboxymethyl cellulose, 0.1-3% of wet strength agent PAE and 0-2% of nano cellulose are sequentially added into a pulp blending pool, and the mixture is fully mixed for later use.
Further, the nanocellulose added in the step (1) is nanocellulose crystal (NCC), nanocellulose yarn (NFC) or a mixture of nanocellulose crystal (NCC) and nanocellulose yarn (NFC) in a ratio of 1: 1.
Further, in the step (2), paper is made by adopting a surface core bottom slurry separately-feeding forming process in a three-lap net paper machine.
Further, surface sizing in the step (3) adopts film transfer sizing, and the sizing agent comprises 10-15 parts of Arabic gum, 30-40 parts of polyvinyl alcohol, 10-15 parts of cassava starch, 3-5 parts of carboxymethyl cellulose and 1-5 parts of nano cellulose.
Further, surface sizing is performed in the step (3), and the adopted nano-cellulose is nano-cellulose crystal (NCC) or nano-cellulose filament (NFC) or the nano-cellulose crystal (NCC) and the nano-cellulose filament (NFC) are mixed and added in a ratio of 1: 1.
Further, the paper weight of the liner cardboard is 120-
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, different types of nano-cellulose are added, and the wet strength of the fine dried noodle cardboard paper is effectively improved by combining with the wet strength agent PAE.
2. The fine dried noodle cardboard paper prepared by the invention uses less paper pulp when the wet strength is the same, and the formed grey cardboard has low ration and thin thickness.
3. According to the invention, different types of nanocellulose are added in surface sizing, so that the sizing efficiency of film transfer sizing can be adjusted, and the surface strength and wet strength of finished paper are improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 invention.
The invention adopts a three-layer forming mode of a surface layer, a core layer and a bottom layer, the surface pulp preferably selects natural color bamboo pulp and OCC mixed pulp grinding, the core pulp preferably selects OCC waste paper pulp and papermaking primary settling tank sludge, the bottom pulp adopts 100% OCC pulp, the pulp selection can improve the strength index of the fiber and reduce the raw material cost. The nano-cellulose is added into the surface pulp and the bottom pulp to improve the binding sites between the PAE wet strength agent and the fibers and improve the strength performance of the finished paper. The film transfer sizing agent is added with different types of nanocellulose, so that the formation of a network structure formed by crosslinking between surface sizing and fibers is enhanced, the film transfer sizing efficiency and the surface strength of finished paper are improved, and the invention is further detailed by combining with an example.
Example 1
The weight of the finished fine dried noodle cardboard paper is 125g/m2
The surface pulp is prepared by mixing bleached natural color bamboo pulp and OCC waste paper pulp in a ratio of 1:1 and grinding, and then adding 5% of micro-nano calcium carbonate, 3% of carboxymethyl cellulose, 0.5% of wet strength agent PAE and 0.5% of Nano Cellulose Crystal (NCC) in a surface pulp mixing tank in sequence, and fully mixing for later use;
mixing the core pulp with OCC waste paper pulp and papermaking primary settling tank sludge 30: 70;
bottom pulp, namely 100 percent OCC pulp is adopted, bottom materials are purified and ground into pulp, and micro-nano calcium carbonate 5 percent, carboxymethyl cellulose, wet strength agent PAE 0.5 percent and Nano Cellulose Crystal (NCC)0.5 percent are added into a bottom pulp mixing pool in sequence and are fully mixed for later use;
the pulp of the surface layer, the core layer and the bottom layer are respectively fed to a net forming process to manufacture paper in a three-lap net paper machine;
the surface sizing adopts film transfer sizing, and the sizing agent comprises 10 parts of Arabic gum, 30 parts of polyvinyl alcohol, 15 parts of cassava starch, 3 parts of carboxymethyl cellulose and 1 part of Nano Cellulose Crystal (NCC).
Example 2
The weight of the finished fine dried noodle cardboard paper is 125g/m2
The surface pulp is prepared by mixing bleached natural color bamboo pulp and OCC waste paper pulp in a ratio of 1:1 and grinding, sequentially adding 10% of micro-nano calcium carbonate, 5% of carboxymethyl cellulose, 3% of wet strength agent PAE, 2% of Nano Cellulose Crystal (NCC) and 1:1 of nano cellulose fiber (NFC) in a surface pulp mixing tank, and fully mixing for later use;
core pulp, which is 100 percent of sludge in a papermaking primary sedimentation tank;
bottom pulp, namely 100% OCC pulp is adopted, bottom material is purified and ground into pulp, 10% of micro-nano calcium carbonate, 5% of carboxymethyl cellulose, 3% of wet strength agent PAE, 1:1 of Nano Cellulose Crystal (NCC) and nano cellulose fiber (NFC) are sequentially added into a bottom pulp mixing pool, and 2% of the mixture is added and fully mixed for later use;
the pulp of the surface layer, the core layer and the bottom layer are respectively fed to a net forming process to manufacture paper in a three-lap net paper machine;
the surface sizing adopts film transfer sizing, and the sizing agent comprises 15 parts of Arabic gum, 40 parts of polyvinyl alcohol, 15 parts of cassava starch, 3 parts of carboxymethyl cellulose and 5 parts of Nano Cellulose Crystal (NCC).
Example 3
The weight selection of the finished fine dried noodle cardboard paper is 150g/m2
The surface pulp is prepared by mixing bleached natural color bamboo pulp and OCC waste paper pulp 20:80 and grinding into pulp, and sequentially adding 10% of micro-nano calcium carbonate, 3% of carboxymethyl cellulose, 3% of wet strength agent PAE and 2% of nano cellulose fiber (NFC) in a surface pulp mixing tank, and fully mixing for later use;
core pulp, which is 100 percent of sludge in a papermaking primary sedimentation tank;
bottom pulp, namely 100% OCC pulp is adopted, bottom materials are purified and ground into pulp, 10% of micro-nano calcium carbonate, 3% of carboxymethyl cellulose, 3% of wet strength agent PAE and 2% of nano cellulose fiber (NFC) are sequentially added into a bottom pulp mixing pool, and the mixture is fully mixed for later use;
the pulp of the surface layer, the core layer and the bottom layer are respectively fed to a net forming process to manufacture paper in a three-lap net paper machine;
the surface sizing adopts film transfer sizing, and the sizing agent comprises 12 parts of Arabic gum, 30 parts of polyvinyl alcohol, 15 parts of cassava starch, 5 parts of carboxymethyl cellulose, and 5 parts of Nano Cellulose Crystal (NCC) and nano cellulose fiber (NFC) mixed in a ratio of 1: 1. In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. The preparation method of the low-basis weight high-wet-strength liner cardboard paper is characterized by comprising the following steps of: the method comprises the following steps:
pulping, wherein the surface pulp is prepared by mixing bleached natural-color bamboo pulp and OCC (organic cellulose) and pulping, micro-nano calcium carbonate, carboxymethyl cellulose, a wet strength agent PAE (polyamide acid) and nano cellulose are sequentially added into a pulp preparation pool, and the mixture is fully mixed for later use; the core pulp adopts OCC waste paper pulp and papermaking primary settling tank sludge; bottom pulp, namely 100 percent OCC pulp is adopted, the pulp is purified and ground into pulp, micro-nano calcium carbonate, carboxymethyl cellulose, wet strength agent PAE and nano cellulose are sequentially added into a pulp blending pool, and the mixture is fully mixed for later use;
step (2) papermaking, wherein the surface core bottom slurry is respectively made into paper in a three-fold net paper machine;
and (3) surface sizing, wherein the surface sizing adopts film transfer sizing, and the sizing agent comprises Arabic gum, polyvinyl alcohol, tapioca starch, carboxymethyl cellulose and nano cellulose.
2. The method for preparing the low basis weight high wet strength linerboard paper as claimed in claim 1, wherein the method comprises the following steps: the surface pulp in the step (1) is prepared by mixing bleached natural color bamboo pulp and waste boxboard waste paper OCC and grinding the mixture into pulp, wherein the ratio of the two raw materials is 50:50-20:80 (absolute dry weight), 5-10% of micro-nano calcium carbonate, 3-5% of carboxymethyl cellulose, 0.1-3% of wet strength agent PAE and 0.1-2% of nano cellulose are sequentially added into a pulp mixing pool, and the mixture is fully mixed for later use.
3. The method for preparing the low basis weight high wet strength linerboard paper as claimed in claim 1, wherein the method comprises the following steps: the core pulp in the step (1) adopts OCC waste paper pulp and papermaking primary settling tank sludge, and the adding proportion is 30:70-100: 0.
4. The method for preparing the low basis weight high wet strength linerboard paper as claimed in claim 1, wherein the method comprises the following steps: in the step (1), the bottom pulp is prepared from 100% OCC pulp, the pulp is purified and ground into pulp, and 5-10% of micro-nano calcium carbonate, 3-5% of carboxymethyl cellulose, 0.1-3% of wet strength agent PAE and 0-2% of nano cellulose are sequentially added into a pulp mixing tank and fully mixed for later use.
5. The method for preparing the low basis weight high wet strength linerboard paper as claimed in claim 1, wherein the method comprises the following steps: the nano-cellulose added in the step (1) is nano-cellulose crystal (NCC), nano-cellulose filament (NFC) or nano-cellulose crystal (NCC) and nano-cellulose filament (NFC)1:1 mixed and added.
6. The method for preparing the low basis weight high wet strength linerboard paper as claimed in claim 1, wherein the method comprises the following steps: and (3) making paper in the step (2), wherein the paper is made in a three-lap mesh paper machine by adopting a surface-core bottom slurry separately-feeding forming process.
7. The method for preparing the low basis weight high wet strength linerboard paper as claimed in claim 1, wherein the method comprises the following steps: surface sizing in the step (3) is carried out by adopting film transfer sizing, and the sizing agent comprises 10-15 parts of Arabic gum, 30-40 parts of polyvinyl alcohol, 10-15 parts of cassava starch, 3-5 parts of carboxymethyl cellulose and 1-5 parts of nano cellulose.
8. The method for preparing the low basis weight high wet strength linerboard paper as claimed in claim 1, wherein the method comprises the following steps: and (3) surface sizing is performed in the step (3), and the adopted nano cellulose is Nano Cellulose Crystal (NCC) or nano cellulose fiber (NFC) or the Nano Cellulose Crystal (NCC) and the nano cellulose fiber (NFC) are mixed and added in a ratio of 1: 1.
9. The method for preparing the low basis weight high wet strength linerboard paper as claimed in claim 1, wherein the method comprises the following steps: the paper weight of the liner cardboard is 120-150g/m 2.
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| CN202011306974.4A CN112575615A (en) | 2020-11-19 | 2020-11-19 | Preparation method of low-basis-weight high-wet-strength fine dried noodle cardboard paper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011306974.4A CN112575615A (en) | 2020-11-19 | 2020-11-19 | Preparation method of low-basis-weight high-wet-strength fine dried noodle cardboard paper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114990922A (en) * | 2022-05-30 | 2022-09-02 | 浙江金励环保纸业有限公司 | High-strength bamboo fiber gray paperboard and production process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894268A (en) * | 2017-01-04 | 2017-06-27 | 安徽山鹰纸业股份有限公司 | A kind of high-strength cow boxboard and preparation method thereof |
| CN109183500A (en) * | 2018-07-25 | 2019-01-11 | 华南理工大学 | A kind of high-gloss paint, high machine-glazed paper and preparation method thereof |
| CN111074685A (en) * | 2019-12-23 | 2020-04-28 | 山东华泰纸业股份有限公司 | Degradable food packaging paper and production process thereof |
-
2020
- 2020-11-19 CN CN202011306974.4A patent/CN112575615A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894268A (en) * | 2017-01-04 | 2017-06-27 | 安徽山鹰纸业股份有限公司 | A kind of high-strength cow boxboard and preparation method thereof |
| CN109183500A (en) * | 2018-07-25 | 2019-01-11 | 华南理工大学 | A kind of high-gloss paint, high machine-glazed paper and preparation method thereof |
| CN111074685A (en) * | 2019-12-23 | 2020-04-28 | 山东华泰纸业股份有限公司 | Degradable food packaging paper and production process thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114990922A (en) * | 2022-05-30 | 2022-09-02 | 浙江金励环保纸业有限公司 | High-strength bamboo fiber gray paperboard and production process thereof |
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