CN111996833A - Manufacturing method of waterproof and oilproof multi-positioning printing paper - Google Patents
Manufacturing method of waterproof and oilproof multi-positioning printing paper Download PDFInfo
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- CN111996833A CN111996833A CN202010999721.3A CN202010999721A CN111996833A CN 111996833 A CN111996833 A CN 111996833A CN 202010999721 A CN202010999721 A CN 202010999721A CN 111996833 A CN111996833 A CN 111996833A
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- 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
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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
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the 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
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
- D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
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Abstract
The invention discloses a method for manufacturing waterproof and oilproof multi-positioning printing paper, wherein pulp of the printing paper comprises 60-80% of wood pulp and 20-40% of straw pulp, and the method for manufacturing the printing paper comprises the following steps of cooking a grass raw material, carrying out pulp squeezing, washing and defibering, and carrying out oxygen delignification treatment to obtain the straw pulp raw material; pulping the straw pulp raw material and the wood pulp respectively to obtain pulped pulp; making the pulp to obtain printing paper; preparing light calcium carbonate into a solution in a container, and adding a cross-linking agent and a polyvinyl alcohol solution into the solution to obtain a coating solution; the coating solution is arranged on at least one surface of printing paper, the printing paper coated with the coating solution is subjected to infrared drying and hot air drying, and the dried printing paper is subjected to calendaring finishing to obtain the printing paper with the coating. The dried printing paper has high glossiness and wet-friction resistance, and can resist water and oil and perform multiple positioning.
Description
Technical Field
The invention relates to the technical field of printing paper design, in particular to a manufacturing method of waterproof and oilproof multi-positioning printing paper.
Background
The printing paper is a necessary product in human production and life, the specifications and the forms of the printing paper required in different occasions are different in production and life, and the printing paper needs to be subjected to finish machining such as cutting, printing and dyeing after being produced.
From the performance point of view, they should have a certain mechanical strength, moisture resistance, water resistance, etc. The prior art discloses some technical schemes for printing paper, which specifically comprise the following steps:
CN200610077972 discloses a method for producing paper pulp by using herbaceous plants, crop straws and ore powder, which is characterized in that the method comprises the following steps in sequence: (1) crushing herbaceous plants and crop straws to obtain the powder with the granularity of 450-40 meshes; (2) treating straw powder; (3) putting the treated straw powder and ore powder with the granularity of 40-14 meshes into a stirrer for stirring; (4) and injecting water into the stirred mixture to form a suspension, pouring out the suspension to separate the suspension from the ore powder, and filtering and screening the suspension once through a sieve of 100-60 meshes to obtain the original paper pulp, wherein the ore powder can be recycled. The invention takes herbaceous plants and crop straws as raw materials, the raw materials range is wide, water is injected into the raw materials after the raw materials are stirred by a stirrer for one time to form pulp, the adjusting range of the thickness degree of the paper pulp is wide, the process is simple, the energy is saved, the ore powder can be repeatedly used or used by other people, the cost is low, and the paper pulp can be used for preparing high-grade printing paper, transparent paper, printing paper, writing paper, packaging paper, paper boards and the like.
CN88102368 discloses a process for manufacturing coating printing base paper, which is characterized in that the paper pulp for manufacturing the paper has no wood pulp component, but is prepared by respectively controlling the cotton linter pulp and the straw pulp under certain conditions to be matched according to proper proportion, adding certain proportion of anionic starch, mixing uniformly and then making paper. The process saves a large amount of wood and greatly reduces the product cost, thereby having remarkable economic and social benefits.
The existing printing paper is made of straw pulp and wood pulp, cannot meet the printing requirement on the whiteness and fiber performance of the paper, and is short in service life, incapable of preventing water and oil and single in performance. In view of the related technical problems, no effective solution has been proposed at present.
Disclosure of Invention
The invention provides a method for manufacturing waterproof and oilproof multi-positioning printing paper aiming at the problems in the related art, and aims to overcome the technical problems in the prior related art.
The technical scheme of the invention is realized as follows:
a method for manufacturing waterproof and oilproof multi-positioning printing paper comprises the following steps of:
cooking a grass raw material, performing pulp extrusion, washing and defibering, and performing oxygen delignification treatment to obtain a grass pulp raw material;
stirring wood pulp to form fibrosis, and then grinding the wood pulp;
pulping the straw pulp raw material and the wood pulp respectively to obtain pulped pulp;
mixing 20-40% of pulped straw pulp and 60-80% of pulped wood pulp to make the pulp uniform;
making the pulped pulp to obtain printing paper;
preparing light calcium carbonate into a solution in a container, and adding a cross-linking agent and a polyvinyl alcohol solution into the solution to obtain a coating solution;
the coating solution is arranged on at least one surface of the printing paper, and the coating weight of the single surface is 10g/m < 2 >;
carrying out infrared drying and hot air drying on the printing paper coated with the coating solution, wherein the drying time is 4-8 s, the temperature of the infrared drying is set to be 140 ℃, and the temperature of the hot air drying is set to be 150 ℃;
and performing calendaring finish on the dried printing paper to obtain the printing paper with the coating.
Furthermore, the whiteness of the printing paper is 40-50%, the opacity of the printing paper is 92-99%, and the breaking length of the printing paper is 4-6 km.
Furthermore, the straw pulp has the breaking length of 5-8 km, the tearing strength of 240-300 mN, the whiteness of 40-50% ISO, the folding times of 45-95 times and the beating degree of 35-40 SR.
Further, the wood pulp has the breaking length of 6-12 km, the tearing strength of 300-350 mN, the whiteness of 60-80% ISO, the folding times of 60-100 times and the beating degree of 40-60 SR.
Further, the straw pulp raw material plant comprises one or a combination of several of straw, wheat straw, cotton stalk, bagasse, reed and arundo donax.
Further, the wood pulp plant comprises mulberry, paper mulberry, wingceltis, masson pine, larch, red pine, spruce, birch, poplar, basswood, eucalyptus, maple or a combination of several.
Further, the cross-linking agent is a polyfunctional aziridine cross-linking agent, and the polyvinyl alcohol solution is silane-modified polyvinyl alcohol.
Further, the solution includes the addition of an anti-foaming agent and a lubricant.
Further, the coating also comprises a hydrophobic agent, a polyacrylate waterproof coating and a water repellent agent.
The invention has the beneficial effects that: the method can avoid possible damage of chemicals used in the bleaching process to a human body, so that the prepared printing paper product does not contain dioxin and adsorbable organic halides, no damage to the human body is reduced, the influence of the bleaching process on the fracture length, the tearing strength and the folding endurance can be reduced by the straw pulp, and the prepared straw pulp has excellent performance due to different preparation methods, so that the quality of the printing paper can be greatly improved; the plastic pigment in the coating is denatured under the action of preheating and pressure, and the paper is endowed with a highlight effect in the subsequent calendaring finishing process, the modified polyvinyl alcohol is uniformly dotted and dotted as a binder and is dotted in a pigment frame structure, the stable and porous frame structure is obtained and is favorable for absorption, and the addition of the cross-linking agent can enable each functional group of the binder to be cross-linked and molded mutually, so that the pigment, namely light calcium carbonate and the plastic pigment, is fixed on the surface of the printing paper to obtain high wet-resistant friction performance.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
According to the embodiment of the invention, a method for manufacturing the waterproof and oilproof multi-positioning printed paper is provided.
According to the embodiment of the invention, the method for manufacturing the waterproof and oilproof multi-positioning printing paper comprises the following steps of:
cooking a grass raw material, performing pulp extrusion, washing and defibering, and performing oxygen delignification treatment to obtain a grass pulp raw material; the breaking length of the straw pulp is 5-8 km, the tearing strength is 240-300 mN, the whiteness is 40-50% ISO, the folding times are 45-95 times, and the beating degree is 35-40 SR; the straw pulp raw material plant comprises one or more of straw, wheat straw, cotton stalk, bagasse, reed and bamboo reed; the wood pulp plant comprises mulberry, paper mulberry, wingceltis, Chinese red pine, larch, Korean pine, spruce, birch, poplar, basswood, eucalyptus, maple or a combination of the above;
stirring wood pulp to form fibrosis, and then grinding the wood pulp; the breaking length of the wood pulp is 6-12 km, the tearability is 300-350 mN, the whiteness is 60-80% ISO, the folding times are 60-100 times, and the beating degree is 40-60 SR;
pulping the straw pulp raw material and the wood pulp respectively to obtain pulped pulp;
mixing 20-40% of pulped straw pulp and 60-80% of pulped wood pulp to make the pulp uniform;
making the pulped pulp to obtain printing paper; the whiteness of the printing paper is 40-50%, the opacity of the printing paper is 92-99%, and the fracture length of the printing paper is 4-6 km;
preparing light calcium carbonate into a solution in a container, and adding a cross-linking agent and a polyvinyl alcohol solution into the solution to obtain a coating solution; the solution comprises adding a defoaming agent and a lubricant; the cross-linking agent is a polyfunctional aziridine cross-linking agent, and the polyvinyl alcohol solution is silane modified polyvinyl alcohol;
the coating solution is arranged on at least one surface of the printing paper, and the coating weight of the single surface is 10g/m < 2 >; the coating also comprises a hydrophobic agent, a polyacrylate waterproof coating and a water repellent agent;
carrying out infrared drying and hot air drying on the printing paper coated with the coating solution, wherein the drying time is 4-8 s, the temperature of the infrared drying is set to be 140 ℃, and the temperature of the hot air drying is set to be 150 ℃;
and performing calendaring finish on the dried printing paper to obtain the printing paper with the coating.
Example 1
A method for manufacturing waterproof and oilproof multi-positioning printed paper, wherein pulp of the printed paper comprises 60% of wood pulp and 40% of straw pulp, and the method for manufacturing the printed paper comprises the following steps:
cooking a grass raw material, performing pulp extrusion, washing and defibering, and performing oxygen delignification treatment to obtain a grass pulp raw material; the breaking length of the straw pulp is 5km, the tearability is 240mN, the whiteness is 40% ISO, the folding times are 45 times, and the beating degree is 35 SR; the straw pulp raw material plant comprises one or more of straw, wheat straw, cotton stalk, bagasse, reed and bamboo reed; the wood pulp plant comprises mulberry, paper mulberry, wingceltis, Chinese red pine, larch, Korean pine, spruce, birch, poplar, basswood, eucalyptus, maple or a combination of the above;
stirring wood pulp to form fibrosis, and then grinding the wood pulp; the breaking length of the wood pulp is 6km, the tearability is 300mN, the whiteness is 60% ISO, the folding times are 60 times, and the beating degree is 40 SR;
pulping the straw pulp raw material and the wood pulp respectively to obtain pulped pulp;
mixing the pulped 40% of straw pulp and 60% of wood pulp to make the pulp uniform;
making the pulped pulp to obtain printing paper; the whiteness of the printing paper is 40%, the opacity of the printing paper is 92%, and the fracture length of the printing paper is 4 km;
preparing light calcium carbonate into a solution in a container, and adding a cross-linking agent and a polyvinyl alcohol solution into the solution to obtain a coating solution; the solution comprises adding a defoaming agent and a lubricant; the cross-linking agent is a polyfunctional aziridine cross-linking agent, and the polyvinyl alcohol solution is silane modified polyvinyl alcohol;
the coating solution is arranged on at least one surface of the printing paper, and the coating weight of the single surface is 10g/m < 2 >; the coating also comprises a hydrophobic agent, a polyacrylate waterproof coating and a water repellent agent;
carrying out infrared drying and hot air drying on the printing paper coated with the coating solution, wherein the drying time is 4s, the temperature of the infrared drying is set to be 140 ℃, and the temperature of the hot air drying is set to be 150 ℃;
and performing calendaring finish on the dried printing paper to obtain the printing paper with the coating.
Example 2
A method for manufacturing waterproof and oilproof multi-positioning printed paper, wherein pulp of the printed paper comprises 70% of wood pulp and 30% of straw pulp, and the method for manufacturing the printed paper comprises the following steps:
cooking a grass raw material, performing pulp extrusion, washing and defibering, and performing oxygen delignification treatment to obtain a grass pulp raw material; the breaking length of the straw pulp is 5-8 km, the tearability is 260mN, the whiteness is 45% ISO, the folding times are 55 times, and the beating degree is 38 SR; the straw pulp raw material plant comprises one or more of straw, wheat straw, cotton stalk, bagasse, reed and bamboo reed; the wood pulp plant comprises mulberry, paper mulberry, wingceltis, Chinese red pine, larch, Korean pine, spruce, birch, poplar, basswood, eucalyptus, maple or a combination of the above;
stirring wood pulp to form fibrosis, and then grinding the wood pulp; the breaking length of the wood pulp is 7km, the tearability is 320mN, the whiteness is 70% ISO, the folding times are 80 times, and the beating degree is 50 SR;
pulping the straw pulp raw material and the wood pulp respectively to obtain pulped pulp;
mixing the pulped 30% of straw pulp and 70% of wood pulp to make the pulp uniform;
making the pulped pulp to obtain printing paper; the whiteness of the printing paper is 45%, the opacity of the printing paper is 95%, and the fracture length of the printing paper is 5 km;
preparing light calcium carbonate into a solution in a container, and adding a cross-linking agent and a polyvinyl alcohol solution into the solution to obtain a coating solution; the solution comprises adding a defoaming agent and a lubricant; the cross-linking agent is a polyfunctional aziridine cross-linking agent, and the polyvinyl alcohol solution is silane modified polyvinyl alcohol;
the coating solution is arranged on at least one surface of the printing paper, and the coating weight of the single surface is 10g/m < 2 >; the coating also comprises a hydrophobic agent, a polyacrylate waterproof coating and a water repellent agent;
carrying out infrared drying and hot air drying on the printing paper coated with the coating solution, wherein the drying time is 6s, the temperature of the infrared drying is set to be 140 ℃, and the temperature of the hot air drying is set to be 150 ℃;
and performing calendaring finish on the dried printing paper to obtain the printing paper with the coating.
Example 3
A method for manufacturing waterproof and oilproof multi-positioning printed paper, wherein pulp of the printed paper comprises 80% of wood pulp and 20% of straw pulp, and the method for manufacturing the printed paper comprises the following steps:
cooking a grass raw material, performing pulp extrusion, washing and defibering, and performing oxygen delignification treatment to obtain a grass pulp raw material; the breaking length of the straw pulp is 8km, the tearability is 300mN, the whiteness is 50% ISO, the folding times are 95 times, and the beating degree is 40 SR; the straw pulp raw material plant comprises one or more of straw, wheat straw, cotton stalk, bagasse, reed and bamboo reed; the wood pulp plant comprises mulberry, paper mulberry, wingceltis, Chinese red pine, larch, Korean pine, spruce, birch, poplar, basswood, eucalyptus, maple or a combination of the above;
stirring wood pulp to form fibrosis, and then grinding the wood pulp; the breaking length of the wood pulp is 12km, the tearability is 350mN, the whiteness is 80% ISO, the folding times are 100 times, and the beating degree is 60 SR;
pulping the straw pulp raw material and the wood pulp respectively to obtain pulped pulp;
mixing the 20% of pulped straw pulp and 80% of pulped wood pulp to make the pulp uniform;
making the pulped pulp to obtain printing paper; the whiteness of the printing paper is 50%, the opacity of the printing paper is 99%, and the fracture length of the printing paper is 6 km;
preparing light calcium carbonate into a solution in a container, and adding a cross-linking agent and a polyvinyl alcohol solution into the solution to obtain a coating solution; the solution comprises adding a defoaming agent and a lubricant; the cross-linking agent is a polyfunctional aziridine cross-linking agent, and the polyvinyl alcohol solution is silane modified polyvinyl alcohol;
the coating solution is arranged on at least one surface of the printing paper, and the coating weight of the single surface is 10g/m < 2 >; the coating also comprises a hydrophobic agent, a polyacrylate waterproof coating and a water repellent agent;
carrying out infrared drying and hot air drying on the printing paper coated with the coating solution, wherein the drying time is 8s, the temperature of the infrared drying is set to be 140 ℃, and the temperature of the hot air drying is set to be 150 ℃;
and performing calendaring finish on the dried printing paper to obtain the printing paper with the coating.
The water-resisting agent and the water repellent agent contain wax components, the super-strong dispersing performance of the water-resisting agent and the water repellent agent can be uniformly permeated into fiber pores of the paper product, the water-resisting agent has resistance to the permeation of other objects, and a waterproof layer is formed.
The invention has the beneficial effects that: the possible damage of chemicals used in the bleaching process to a human body can be avoided, so that the prepared printing paper product does not contain dioxin and adsorbable organic halides, the damage to the human body is reduced, the influence of the bleaching process on the fracture length, the tearing strength and the folding endurance can be reduced, and due to different preparation methods, the prepared straw pulp has excellent performance, and the quality of the printing paper can be greatly improved; the plastic pigment in the coating is denatured under the action of preheating and pressure, and the paper is endowed with a highlight effect in the subsequent calendaring finishing process, the modified polyvinyl alcohol is uniformly dotted and dotted as a binder and is dotted in a pigment frame structure, the stable and porous frame structure is obtained and is favorable for absorption, and the addition of the cross-linking agent can enable each functional group of the binder to be cross-linked and molded mutually, so that the pigment, namely light calcium carbonate and the plastic pigment, is fixed on the surface of the printing paper to obtain high wet-resistant friction performance.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The manufacturing method of the waterproof and oilproof multi-positioning printing paper is characterized in that pulp of the printing paper comprises 60-80% of wood pulp and 20-40% of straw pulp, and the manufacturing method of the printing paper comprises the following steps:
cooking a grass raw material, performing pulp extrusion, washing and defibering, and performing oxygen delignification treatment to obtain a grass pulp raw material;
stirring wood pulp to form fibrosis, and then grinding the wood pulp;
pulping the straw pulp raw material and the wood pulp respectively to obtain pulped pulp;
mixing 20-40% of pulped straw pulp and 60-80% of pulped wood pulp to make the pulp uniform;
making the pulped pulp to obtain printing paper;
preparing light calcium carbonate into a solution in a container, and adding a cross-linking agent and a polyvinyl alcohol solution into the solution to obtain a coating solution;
the coating solution is arranged on at least one surface of the printing paper, and the coating weight of the single surface is 10g/m < 2 >;
carrying out infrared drying and hot air drying on the printing paper coated with the coating solution, wherein the drying time is 4-8 s, the temperature of the infrared drying is set to be 140 ℃, and the temperature of the hot air drying is set to be 150 ℃;
and performing calendaring finish on the dried printing paper to obtain the printing paper with the coating.
2. The method for manufacturing the waterproof and oilproof multi-positioning printed paper as claimed in claim 1, wherein the whiteness of the printed paper is 40-50%, the opacity of the printed paper is 92-99%, and the breaking length of the printed paper is 4-6 km.
3. The method for making the waterproof and oilproof multi-positioning printed paper as claimed in claim 1, wherein the straw pulp has a breaking length of 5-8 km, a tearing strength of 240-300 mN, a whiteness of 40-50% ISO, a folding endurance of 45-95 times, and a beating degree of 35-40 SR.
4. The method for manufacturing the waterproof and oilproof multi-positioning printed paper as claimed in claim 1, wherein the breaking length of the wood pulp is 6-12 km, the tearability is 300-350 mN, the whiteness is 60-80% ISO, the folding endurance is 60-100 times, and the beating degree is 40-60 SR.
5. The method for making the waterproof and oilproof multi-positioning printed paper as claimed in claim 1, wherein the straw pulp raw material plant comprises one or more of straw, wheat straw, cotton stalk, bagasse, reed or bamboo reed.
6. The method as claimed in claim 1, wherein the wood pulp plant comprises mulberry, broussonetia papyrifera, pteroceltis tatarinowii, pinus massoniana, larch, pinus koraiensis, spruce, birch, poplar, basswood, eucalyptus, maple or a combination thereof.
7. The method for making a multi-positioned printed paper that is water and oil repellent according to claim 1, wherein the cross-linking agent is a polyfunctional aziridine cross-linking agent, and the polyvinyl alcohol solution is silane-modified polyvinyl alcohol.
8. The method for making a water and oil repellent multi-registered printed paper as claimed in claim 1, wherein the solution comprises the addition of a defoamer and a lubricant.
9. The method of claim 1, wherein the coating further comprises a hydrophobic agent, a polyacrylate waterproof coating, and a water repellent agent.
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| CN202010999721.3A CN111996833A (en) | 2020-09-22 | 2020-09-22 | Manufacturing method of waterproof and oilproof multi-positioning printing paper |
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| CN202010999721.3A CN111996833A (en) | 2020-09-22 | 2020-09-22 | Manufacturing method of waterproof and oilproof multi-positioning printing paper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2616675A (en) * | 2022-03-18 | 2023-09-20 | Anheuser Busch Inbev Sa | Packaging from agricultural plant fibres |
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| CN104928976A (en) * | 2015-05-27 | 2015-09-23 | 金东纸业（江苏）股份有限公司 | Preparation method of coating solution of printing paper, manufacturing process of printing paper and printing paper |
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2020
- 2020-09-22 CN CN202010999721.3A patent/CN111996833A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101638862A (en) * | 2007-12-05 | 2010-02-03 | 山东福荫造纸环保科技有限公司 | Natural color offset plate printing paper and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2616675A (en) * | 2022-03-18 | 2023-09-20 | Anheuser Busch Inbev Sa | Packaging from agricultural plant fibres |
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