CN110284361B - Coffee-flavored paper and preparation method and application thereof - Google Patents
Coffee-flavored paper and preparation method and application thereof Download PDFInfo
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- CN110284361B CN110284361B CN201910654066.5A CN201910654066A CN110284361B CN 110284361 B CN110284361 B CN 110284361B CN 201910654066 A CN201910654066 A CN 201910654066A CN 110284361 B CN110284361 B CN 110284361B
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- paper
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- coffee grounds
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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
-
- 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
- D21H17/02—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
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
- D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
- D21H17/45—Nitrogen-containing groups
-
- 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
- D21H27/002—Tissue paper; Absorbent paper
- D21H27/004—Tissue paper; Absorbent paper characterised by specific parameters
- D21H27/005—Tissue paper; Absorbent paper characterised by specific parameters relating to physical or mechanical properties, e.g. tensile strength, stretch, softness
- D21H27/007—Tissue paper; Absorbent paper characterised by specific parameters relating to physical or mechanical properties, e.g. tensile strength, stretch, softness relating to absorbency, e.g. amount or rate of water absorption, optionally in combination with other parameters relating to physical or mechanical properties
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J5/00—Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch-moulds
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
Abstract
The invention belongs to the technical field of recycling of coffee grounds, and particularly relates to coffee aroma paper and a preparation method and application thereof. The coffee aroma paper provided by the invention comprises the following raw materials in parts by mass: 50-70 parts of paper pulp fibers, 15-25 parts of waste paper scraps, 6-13 parts of coffee grounds, 4-5 parts of an adsorbent and 5-15 parts of a charge balancing agent. The coffee grounds are used as one of the paper making raw materials, so that the paper has coffee fragrance and has the function of removing peculiar smell; meanwhile, the use of the coffee grounds also improves the physical and mechanical strength of the paper; the use of the coffee grounds and the waste paper scraps reduces the use amount of paper pulp raw materials and reduces the papermaking cost.
Description
Technical Field
The invention belongs to the technical field of recycling of coffee grounds, and particularly relates to coffee aroma paper and a preparation method and application thereof.
Background
The coffee grounds are solid residues of coffee obtained by grinding and boiling coffee beans, and the utilization of the coffee grounds at the present stage is diversified: the coffee grounds are of fluffy structures and can be used for removing peculiar smell; the coffee grounds contain a large amount of nitrides and can be used as fertilizers to be doped into soil for plant growth; the smell of the coffee grounds also has the insect prevention function; in addition, coffee grounds may also be used as detergents. The above application is to use coffee grounds directly for solving problems in life, and there are few reports of using coffee grounds for industrial production.
Disclosure of Invention
The invention aims to provide the paper with coffee aroma and the preparation method and application thereof.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention provides a piece of paper with coffee aroma, which comprises the following raw materials in parts by mass: 50-70 parts of paper pulp fibers, 15-25 parts of waste paper scraps, 6-13 parts of coffee grounds, 4-5 parts of an adsorbent and 5-15 parts of a charge balancing agent.
Preferably, the grain size of the coffee grounds is less than or equal to 80 meshes.
Preferably, the adsorbent is prepared by the following method:
mixing corn flour, tapioca flour, vinyl acetate and water, and stirring under heating condition to obtain adsorbent.
Preferably, the mass ratio of the corn flour to the cassava flour to the vinyl acetate is (45-50): (45-50): (1-3).
Preferably, the heating temperature is 70-90 ℃.
Preferably, the charge balancing agent comprises an anionic balancing agent.
Preferably, the anion balancing agent comprises one or both of sodium polyacrylate and polymethacrylic acid.
The invention provides a preparation method of the coffee aroma paper, which comprises the following steps:
mixing paper pulp fibers, waste paper scraps, coffee grounds and water, and pulping to obtain a paper pulp stock solution;
mixing the paper pulp stock solution with an adsorbent, and then sequentially diluting and balancing charges to obtain formed slurry;
forming the forming slurry by using a vacuum slurry absorption method to obtain a formed paper blank;
and carrying out hot press molding on the molded paper blank to obtain the coffee aroma paper.
Preferably, the hot-press molding temperature is 200-250 ℃, and the pressure is 20-40T; the time is 60-90 s.
The invention also provides application of the coffee aroma paper in the technical scheme or the coffee aroma paper prepared by the preparation method in the technical scheme in the cup stand and packaging field.
The coffee aroma paper provided by the invention comprises the following raw materials in parts by mass: 50-70 parts of paper pulp fibers, 15-25 parts of waste paper scraps, 6-13 parts of coffee grounds, 4-5 parts of an adsorbent and 5-15 parts of a charge balancing agent. The coffee grounds are used as one of the paper making raw materials, so that the paper has coffee fragrance and has the function of removing peculiar smell; meanwhile, the use of the coffee grounds also improves the physical and mechanical strength of the paper; the use of the coffee grounds and the waste paper scraps reduces the use amount of paper pulp raw materials and reduces the papermaking cost.
Detailed Description
The invention provides a piece of coffee aroma paper which is prepared from the following raw materials in parts by mass: 50-70 parts of paper pulp fibers, 15-25 parts of waste paper scraps, 6-13 parts of coffee grounds, 4-5 parts of an adsorbent and 5-15 parts of a charge balancing agent.
The preparation raw material of the coffee aroma paper comprises 50-70 parts by mass of paper pulp fiber, preferably 52-67 parts by mass of paper pulp fiber, and more preferably 55-65 parts by mass of paper pulp fiber. The pulp fiber of the invention has no special requirements, and can be prepared by the pulp fiber for papermaking which is well known to those skilled in the art.
The preparation raw material of the coffee aroma paper comprises 15-25 parts of waste paper scraps, preferably 18-23 parts of waste paper scraps, and more preferably 20 parts of waste paper scraps by mass parts of the pulp fibers. The waste paper scraps are pollution-free paper scraps, and can be waste leftover materials generated in the paper processing process or recycled secondary paper. The invention can reduce the use amount of paper pulp fiber by using waste paper scraps and reduce the raw material cost of paper.
The preparation raw material of the coffee aroma paper comprises 6-13 parts by mass of coffee grounds, preferably 7-12 parts by mass of the coffee grounds, and more preferably 8-11 parts by mass of the pulp fibers. In the invention, the grain size of the coffee grounds is preferably less than or equal to 80 meshes, and more preferably 100-150 meshes. The invention has no special requirements on the source of the coffee grounds, and the coffee grounds which are well known to the person skilled in the art can be adopted.
The preparation raw material of the coffee aroma paper comprises 4-5 parts of adsorbent, preferably 4.1-4.8 parts, and more preferably 4.3-4.5 parts by mass of pulp fiber. In the present invention, the adsorbent is preferably prepared by the following method:
mixing corn flour, tapioca flour, vinyl acetate and water, and stirring under heating to obtain adsorbent.
In the invention, the mass ratio of the corn flour to the cassava flour to the vinyl acetate is preferably (45-50): (45-50): (1-3), more preferably 50:50: 3; the mass of the water is preferably 80-85% of the total mass of the raw materials for preparing the adsorbent, and more preferably 85%; the raw materials for preparing the adsorbent are preferably corn flour, tapioca flour, vinyl acetate and water. In the invention, the heating temperature is preferably 70-90 ℃, more preferably 95-100 ℃, and further preferably 100 ℃; the stirring time is preferably controlled according to the mass of the preparation raw materials, and further, when the mass of the preparation raw materials is less than 1kg, the stirring time is preferably 20-60 s; when the mass of the preparation raw material is 1-10 kg, the stirring time is preferably 1-15 min, and when the mass of the preparation raw material is 10-20 kg, the stirring time is preferably 15-25 min; when the mass of the preparation raw material is more than 20kg, the stirring time is preferably 25-40 min. The invention has no special requirement on the stirring speed, ensures that the heating materials are heated uniformly and do not splash.
The preparation raw material of the coffee aroma paper comprises 5-15 parts by mass of the charge balancing agent, preferably 6-14 parts by mass of the pulp fiber. In the present invention, the charge balancing agent preferably includes an anion balancing agent, and the anion balancing agent preferably includes one or both of sodium polyacrylate and polymethacrylic acid, and more preferably, sodium polyacrylate and polymethacrylic acid. When the anionic balancing agent is a mixture of two components, the mass ratio of the two components in the mixture is preferably 1: (0.8 to 1.2), and more preferably 1: 1.
The invention utilizes the coffee grounds and the waste paper scraps as the paper preparation raw materials, reduces the raw material consumption of the paper pulp fibers and is beneficial to saving the production cost of paper. The invention utilizes the adsorbent and the charge balancing agent as the auxiliary agents, so that the coffee grounds can be firmly combined with the paper pulp fibers, the residues are prevented from falling, and the invention is favorable for obtaining paper with better physical and mechanical properties.
The invention provides a preparation method of the coffee aroma paper, which comprises the following steps:
mixing paper pulp fibers, waste paper scraps, coffee grounds and water, and pulping to obtain a paper pulp stock solution;
mixing the paper pulp stock solution with an adsorbent, and then sequentially diluting and balancing charges to obtain formed slurry;
forming the forming slurry by using a vacuum slurry absorption method to obtain a formed paper blank;
and carrying out hot press molding on the molded paper blank to obtain the coffee aroma paper.
The invention mixes paper pulp fiber, waste paper scrap, coffee grounds and water, and obtains paper pulp stock solution after beating. The method has no special requirement on the using amount of the water, and can obtain the paper pulp stock solution with the mass concentration of 8-12%; the mass concentration of the paper pulp stock solution is calculated by the total mass of the paper pulp fiber, the waste paper scrap and the coffee grounds. The invention has no special requirements on pulping parameters, and can control the pulping degree within 30-50 DEG SR.
After obtaining the paper pulp stock solution, the paper pulp stock solution is mixed with an adsorbent, and then dilution and charge balancing treatment are sequentially carried out to obtain the forming slurry. The invention has no special requirement on the mixing mode, and the adsorbent is uniformly dispersed in the paper pulp stock solution under the stirring condition. In the invention, the dilution is preferably to dilute the mass concentration of the paper pulp stock solution to 1-1.5%, more preferably to 1.2-1.4%; after dilution, the invention preferably adds a charge balancing agent to the diluted slurry to carry out charge balancing treatment; the specific adding amount of the charge balancing agent is preferably determined by the filament hanging state, so that the cationic charges in the slurry can be balanced, and the proper forming slurry can be obtained.
After the forming slurry is obtained, the forming slurry is formed by a vacuum slurry suction method to obtain a formed paper blank. In the invention, the vacuum slurry sucking method is operated as follows: and (4) placing the molding slurry in a mold, and then vacuumizing to remove moisture to obtain a molded paper blank. In the present invention, the water obtained by vacuum filtration is preferably recycled and reused, and may be used, for example, as dilution water or beating water.
After the formed paper blank is obtained, the formed paper blank is subjected to hot press forming to obtain the paper with coffee aroma. In the invention, the hot-press forming temperature is preferably 200-250 ℃, and is further preferably 210-240 ℃; the pressure of the hot-press forming is preferably 20-40T, and more preferably 20-30T; the time for hot press molding is preferably 60 to 90 seconds, and more preferably 70 to 85 seconds.
The invention also provides application of the paper with coffee aroma in the technical scheme or the paper prepared by the preparation method in the technical scheme in the cup stand and packaging field. In the present invention, the thickness of the paper is preferably 1 to 3mm, more preferably 1.2 to 2.2mm, when the cup holder is used. The invention is not particularly limited to the specific manner of use described, as such may be readily adapted by those skilled in the art.
In order to further illustrate the present invention, a coffee aroma paper and a preparation method and application thereof provided by the present invention will be described in detail with reference to examples, which should not be construed as limiting the scope of the present invention.
Example 1
a. Mixing corn flour, cassava flour and vinyl acetate with water (the water accounts for 80-85% of the mixture in 100 parts by mass) according to a mass ratio of 50:50:3, wherein the total mass of the prepared raw materials is 25kg, and stirring the raw materials for 30min at 80 ℃ to obtain an adsorbent;
b. putting 1000kg water into a pulping barrel, adding 20kg waste paper scraps (white paper edges), 70kg paper pulp fibers (natural color raw wood pulp) and 10kg coffee grounds in turn, continuously pulping for 45min at the rotating speed of 900r/min to fully combine the paper pulp fibers and coffee ions, adding 25kg of the prepared adsorbent, and uniformly mixing to obtain a paper pulp stock solution;
c. injecting the stock solution of the paper pulp into a pulp blending tank, adding 9000kg of clear water for dilution (the mass concentration after dilution is controlled within the range of 1-1.5%), then testing the charge of the diluted pulp, and supplementing a charge balancing agent according to the test result to enable the pulp to be in a cotton wool state, thereby obtaining the formed pulp;
d. injecting the molding slurry into a molding slurry pool, and molding in a vacuum slurry suction mode to obtain a molded paper blank; during molding, the vacuum condition is controlled within the range of minus 0.50-0.90 Pa;
e. and (3) moving the formed paper blank to a hot-pressing forming machine, controlling the temperature at 230 ℃ and the pressure at 25T, moving out after hot pressing for 90s to obtain a semi-finished product, and then cutting edges to obtain finished paper.
Examples 2 to 3
Coffee aroma paper was prepared in the manner of example 1, with the raw material amounts shown in table 1.
Comparative example 1
Paper was prepared as in example 1, except that no coffee grounds were added.
TABLE 1 preparation of examples 1-3 and comparative example 1 raw material amounts
Characterization and results of Performance
The papers obtained in examples 1 to 3 and comparative example 1 were tested for coffee aroma using a sensory experience method.
The paper obtained in the examples 1-3 and the comparative example 1 is used as a clothes packaging paper, clothes used in the test are clean and dry clothes, the clothes are packaged and placed indoors, the environment humidity is controlled to be 60-70%, the temperature is controlled to be 25-35 ℃, the clothes are placed for 7 days, whether the clothes are mildewed or not is observed, and the paper is used for representing whether the test paper has the effects of adsorbing and removing peculiar smell.
The papers obtained from examples 1 to 3 and comparative example 1 were tested for the following properties using paper of size 200 x 150 x 2mm as test sample:
testing the tearing resistance of the paper by using a tensile testing machine; testing the tensile strength of the paper by using a blasting tester; testing the folding endurance of the paper by using a bending tester; and testing the hardness of the paper by using a hardness testing machine to represent the wear resistance of the paper. The test results of examples 1-3 were compared with the test results of comparative example 1, which were tested under the same conditions and then used as reference in comparative example 1, and the comparison results are shown in Table 2.
TABLE 2 results of Performance test of the papers obtained in examples 1 to 3 and comparative example 1
| Performance of | Example 1 | Example 2 | Example 3 | Comparative example 1 |
| Whether or not there is coffee aroma | Is provided with | Is provided with | Is provided with | Is free of |
| Whether there is mildew or peculiar smell | Is free of | Is free of | Is free of | Has little peculiar smell |
| Transverse tear Strength | Is kept unchanged | Is kept unchanged | Is kept unchanged | Reference to |
| Longitudinal tear strength | Is kept unchanged | Is kept unchanged | Is kept unchanged | Reference to |
| Tensile strength | Slightly improve | Slightly improve | Slightly improve | Reference to |
| Folding strength | Improvement of | Improvement of | Improvement of | Reference to |
| Hardness of | Improvement of | Improvement of | Improvement of | Reference to |
Remarking: in table 2, the test results of examples and the test results of comparative examples are within ± 3.0% to remain unchanged; when the improvement range is 3-5%, the improvement is slight; an increase in magnitude of more than 5% is an increase.
According to the test results in table 2, it can be seen that the coffee grounds are used as the paper making raw material in the present invention, so that the paper with coffee aroma can be obtained, and the obtained paper has the functions of removing peculiar smell and preventing mildew. In addition, the physical and mechanical properties of the paper added with the coffee grounds are not influenced, the strength property of the paper is consistent with that of the paper without the coffee grounds, and the tensile property, the folding strength and the hardness are even improved.
According to the embodiment, the coffee grounds are used as the papermaking raw materials, so that the coffee grounds are changed into valuable, the application field of the coffee grounds is expanded, the environment-friendly paper with coffee fragrance and capable of removing peculiar smell and preventing mildew is prepared, and the obtained paper can be used as packaging paper or a cup stand.
The coffee grounds and the waste paper scraps are waste materials, the waste materials are used as the papermaking raw materials, the physical and mechanical properties of the obtained paper are not influenced, the paper can replace the traditional paper, the use amount of paper pulp is reduced, and the papermaking cost is reduced.
Although the present invention has been described in detail with reference to the above embodiments, it is only a part of the embodiments of the present invention, not all of the embodiments, and other embodiments can be obtained without inventive step according to the embodiments, and the embodiments are within the scope of the present invention.
Claims (6)
1. The coffee aroma paper comprises the following raw materials in parts by mass: 50-70 parts of paper pulp fibers, 15-25 parts of waste paper scraps, 6-13 parts of coffee grounds, 4-5 parts of an adsorbent and 5-15 parts of a charge balancing agent;
the grain size of the coffee grounds is less than or equal to 80 meshes;
the adsorbent is prepared by the following method:
mixing corn flour, tapioca flour, vinyl acetate and water, and stirring under heating condition to obtain adsorbent; the mass ratio of the corn flour to the cassava flour to the vinyl acetate is (45-50): (45-50): (1-3); the heating temperature is 70-90 ℃;
the preparation method of the coffee aroma paper comprises the following steps:
mixing paper pulp fibers, waste paper scraps, coffee grounds and water, and pulping to obtain a paper pulp stock solution;
mixing the paper pulp stock solution with an adsorbent, and then sequentially diluting and balancing charges to obtain formed slurry;
forming the forming slurry by using a vacuum slurry absorption method to obtain a formed paper blank;
and carrying out hot press molding on the molded paper blank to obtain the coffee aroma paper.
2. The coffee flavored paper as recited in claim 1, wherein the charge balancing agent comprises an anionic balancing agent.
3. The coffee aroma-containing paper as recited in claim 2, wherein said anionic balancing agent comprises one or both of sodium polyacrylate and polymethacrylic acid.
4. A method of making a coffee aroma-containing paper as claimed in any one of claims 1 to 3, comprising the steps of:
mixing paper pulp fibers, waste paper scraps, coffee grounds and water, and pulping to obtain a paper pulp stock solution;
mixing the paper pulp stock solution with an adsorbent, and then sequentially diluting and balancing charges to obtain formed slurry;
forming the forming slurry by using a vacuum slurry absorption method to obtain a formed paper blank;
and carrying out hot press molding on the molded paper blank to obtain the coffee aroma paper.
5. The preparation method according to claim 4, wherein the hot press forming temperature is 200 to 250 ℃, and the pressure is 20 to 40T; the time is 60-90 s.
6. Use of the coffee-flavored paper according to any one of claims 1 to 3 or the coffee-flavored paper prepared by the preparation method according to claim 4 or 5 in cup holders and packaging.
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| EP4148174A1 (en) * | 2021-09-09 | 2023-03-15 | ecobrain AG | Process for manufacturing non-woven fabric-like composite materials from shredded polymer-coated paper products and coffee grounds |
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| CN112064413B (en) * | 2020-08-20 | 2022-08-02 | 咖法科技(上海)有限公司 | Paper containing coffee grounds and preparation method thereof |
| CN112064414B (en) * | 2020-08-20 | 2022-06-24 | 咖法科技(上海)有限公司 | Tea residue-containing paper and making method thereof |
| CN114086432B (en) * | 2021-11-26 | 2023-02-28 | 福建中烟工业有限责任公司 | Composite paper and preparation method thereof, filter stick forming paper, filter tip, tobacco product and application |
| EP4230684A1 (en) * | 2022-02-18 | 2023-08-23 | Salamander SPS GmbH & Co. KG | Composite material with aroma carrier |
| CN116024848B (en) * | 2023-01-30 | 2024-03-26 | 大家智合(北京)网络科技股份有限公司 | Coffee grounds pulp packaging material for packaging coffee and preparation method thereof |
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| CN101302734A (en) * | 2008-06-23 | 2008-11-12 | 广西明阳生化科技股份有限公司 | Method for producing degradable material with manioc waste and wine stillage |
| CN105111981B (en) * | 2015-09-21 | 2017-08-01 | 福建农林大学 | A kind of application of bamboo powder |
| CN107586466A (en) * | 2017-09-05 | 2018-01-16 | 昆明学院 | A kind of raw material is utensil of coffee plants fiber and preparation method thereof |
| CN109423919A (en) * | 2017-09-05 | 2019-03-05 | 林沛缇 | Natural flavor paper structure |
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| EP4148174A1 (en) * | 2021-09-09 | 2023-03-15 | ecobrain AG | Process for manufacturing non-woven fabric-like composite materials from shredded polymer-coated paper products and coffee grounds |
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